Document Type: 
Document Number (FOIA) /ESDN (CREST): 
Release Decision: 
Original Classification: 
Document Page Count: 
Document Creation Date: 
November 2, 2016
Document Release Date: 
September 26, 2002
Sequence Number: 
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
PDF icon CIA-RDP86-00513R002065710009-1.pdf5.96 MB
POPOVA, M.I.; ZVEV.Vj V.A. Use of torpedo from d6t.Tiating blast hole ftyt! --leaning oi.1- v911 filtera. Nefteprom. delo no.2tl:7063 (.'JjRA 17,ej) 1. IL-zionokamkoye neftepromyslavo3i upravInrl'yea 7 VC- gc- v VIA, Docent sov/144-59-9-1/15 AUTHOR: Vasillyev, V.G.,/-Acting Head of the Chair Pf Electrical, Apparatus; and Zverev VA Assistant .Z~~ TITLE: Electronic Anall-oguing of the Hysteresis characteristics of Magnetic Materials PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy Blektromekhanika, 19591 Nr 91 PP 3-10 1U,SSR) ABSTRACT: A number ofarticles dealing with electronic analogues' (Kogan and Rozenblat, Refs 1, 2) have given a description of the circuits which are suitable for analoguing a simple rhomboic hysteresis.loop. Two such circuits are shown in Figs 1 and 2. The circuit of Fig 1 consists of a limiter, a memory element and an ampliflor. The insensitive zone or the width of the hysteresis loop is determined by the cut-off voltages of the limiter diodes~ while the slope of the loop is determined by the output amplifier. The circuit of Fig 2 comprises an adding amplifier, a. limiter and a memory device which is in the form of an Integrator. If one of the above circuits is fitted with a functional converterl,whose parameters are Card 1/4 designed in accordance with the hysteresis loop of actual ferromagnetic material, it is possible to obtaina SOV/144-59'-9-1/15 Electronic Analoguing of the Hysteresis Characteristies.of Magnetic Materials actual' Card 2/)+ characteristic which wculd coincide with the function B = f(H). An example of such a device is shown in Fig 3. The system is based on the circuit of Fig 1. The difference between the circuits of FigI3 and Fig I lies in the fact that the output amplifier of the latter is replaced by a functional converter. The functional transformation consists of three linear segments, wh 'ose limit points are determined by the cut-off voltages of the diodes, while the slope is determined by the ratio of the total resistance of the feedback circuit to theInput resistance Hysteresis loops obtained by this circuit are shown in Fig L~. Analysis of the characteristics. obtained by this device shows that the loops can be analogued only approximately. Adifferent circuit is therefore suggested. This is shown in Fig 5. The device is suitable for the analoguing of the~so-called 11preliminary hysteresis loop". The circuit of Fig 5 is characterised by the fact that the analogue amplifier is preceded not by one but by a series of condensers. Each of the,condensers is connected to the input of the 60v/144-59-9-1/15 Electronic Analoguing of the Hysteresis Charactoristics of Magnetic Materials amplifier through a suitable diode limiter!,, The relationship between the output and the input signals of this type of analogue is expressed by, CBX UBbI. X UBX UBI: tg 01) Go CBX CL ELr at GO where CEM is,the capacitanceat the lnpu.~- of the amplifierl Co is the capacitance in~the feedback circuit, and c6 is the slope of the transfer qharaateristic.~, ~ I The coefficients of the circuit of Vig, 5 are indicated in Table 1. The loop taken by means of the analogue of~Fig 5 is shown in Fig 61 while the partial-symme~rical and:non- symmetrical cycles (taken by the circuit) are illustrated in F-49 7. Further circuits, similar to that of Fig 5, are illustrated in Figs 8 and 9; the circuit of'Fig 8 Card 3/4 consists of a limiter, a functional memoryAevice, an integrator and a functional converter;+ the circuit of Fig.9 consists of a functional convertor7 a functional SOV/114-'59-9-1/15 Electronic Analoguing of the Hysteresis Charact.erist ics of Magnetic Materials memory device and an integrating amplifier. The parameters of these circuits can be dei~ermined graphically by the method of successive approximations,. The loops and partial-symmetrical and non-symmetricalcycles analogued by the circuit of Fig 9 are'illustrated in~ Fig 10; the actual loops and partial:'cycles are shown in Fig 11. There are 11 figures, 3 tables and 3 Soviet references,: one of which is translated from English. ASSOCIATION; Kafedra elektricheskikh apparatov, Rhar!kovskiy politekhnichoskiy institut (Chair of Electrical Card 4/4 Apparatus, Kharlkov Polytechnical Institute) allBMITTED: 15, 1959 [AWN SHALMIR, M.L.; ZVEREV, V.A. (Gor' My) Fastening with a metallic in rupture of the tubercle of the, tibias Ortope, trava, protex. 1?,no*5:64 3-0 456. (MLRA loll) (TIBIA--YRACTUM) -,sootekhnik; PULVSKIT, V-'-, zootekhnik Tear round raising of broiler chicks on th" 'YonIchod' Collective Farm. Zhivotmvodstvo 21 no -5:52-57 159- (RIRA 12.7) 1. Nolkhoz "Vookboa Krannopolvanakogo ray-ona, Aookoveko7 oblasti (for ZverevL (poultry) ~.AUTHOR: Zverev, V. A. 6-58-3-8/16 TITLE- A Calculation of the Deformation Profile of,.the Correction Surface in the Rectifying Glass of kerophotogTaphic Apparatus (Raschet profilya deformirovaniya korrektsionnoy poverkluiosti vyravnivayushchego stekla v aerofotoapparatakh) PERIODICAL: Geodeziya i Kartografiya, 1958P Nr 3f PP- 40 - 43 (USSR) ABSTRACT: In his paper (Geodeziya i KartografiYal 1958, Nr 3P pp. 37 - 39) Professor M. M. Husinoy gave foraulao for the o4leu- lation of the deformation of the firalt surface of thd re6ti- fying glass in aerophotographic apparatus for the purpose of compensating the residual distortion of the optical system. An example of the calculation according tothis formula Is given here. From the comparison of the profile abscissa of the deformed surface with the amount of distortion to be~ corrected is to be seen that the amount of deformation is higher than the amount of distortion. Therefore the technical toler- Card 1/2 ances in the treatment of the deforme .dsurface of the' recti- 6-58-3-8/16 A Calculation of the Deformation Profile of the Correction Surfaoe~ in~the Rectifying Glass of Aerophotographic Apparatus fying glass need not be especially strict. There are 2 figures and 1 table. AVAILABLE: Library of Congress 1. Photographic equipment-Oharacteri8tios Card 2/2 i T 7 ZVMV, Vitaliy Arkad'yovichy assiatent Actual Eerromagnetic matarUl in eloctroni(I models of magnetic elements, Izv, vys, ucheb. zav.j elaktromolkh. 5,rio.5:563-565 162, (141RA 15.5) 1. Kafedra elektrialieskikh apparatov KharIkovalcogo pplitekhnicheskogo, institrta. (Cores (Electrioitl)5 (Ferrates"Llectromealmnical amlogies) V.I.;. 3RWSKIT, L.N. In(bistrial use of fiwnitura, pnnels with saiw4ust c*rms. Dqr.piam,5; no.8:18-19 Ag 156. (Km 0110)~ l.Rharlkovskiv mebollhyy kembluat Imeni Shch*rsa. (Vurniture industry) T- Rel, v V, ZYMATI T.J.- BRODSKIT, L.N.. Yiniahing radio cabinets with grained paper. Der. prom. 6 no.9r2l-22 3 '57. (KIRA 10:11) 1. Miartkovskir mballnyy kombinat im. Shcharea. (Cabinetwork) (Graining) (Paper products) Ill.A.; ZVEPXV* V.Ls the 19 .,,.,..o (MIRA M12) Kafe-drit geukhl,741 -IJ ZVMV, VI. (g.Penza) Woricaro of the evening and itight ohifto (to no tget due attention. Sov.profooiuzY 7 no.15:42-0 Ag ~139. (141RA 12:12) (Panza-flight work) A good mnual. ("Rve imnufAidtWelby B.B. Fedosa&o, A.G. Utkina, Reviewed by r.K. Zverav).' TOkst. prow. 17 'no.8r63.Ag '570 Mu lotg) 1. Glavr4y inzhener Hookovaltoy iibriki imed markova, (Rugs) Obdosenko, B.190) (Utkin'a, A.Gq) SERKOVA., V.I.;,ZVEREV, VA Synthesis of asymmetric dimethyl-phenyl-n-metoWhenylacetylenyl ethylene glycol. Trudy LTI no,59sl9-21 161. (MIRA 17:9) Al 4- A gg -9 7-10 4.4 fir 14 REZANOV, I.A.; NGO TKHYONG. SHAN; SHEYNKANN, Yu.M.; RATS, II.V.; KRUG, O.Yu.; ZYRYANOV, V.N.; RAKCHEYEV, A.D.; YAKOVLEVAJ Ye.B.; PETROVA, M.A.; PETROV, Yu.I.; KUZNE7SOV, Ye.A.; YUDINA, V.V.; BARDINA, N.Yu.; SIMANOVICHj I.M.; ATANSYAN, S,V.; SERGEYEVA, A.M.1 PARFENOV, S.I.; RUTKOVSKIP Yatsek [Rutkowski, Jacek]; MAKHLINA, N:Kh.j qy I'J" El= , , V,.; TERNOVSKAYA, V,T.;,SAMOYL-OVAp R.B,; YERMAKOVAp KI; BYKOVA, II.K.; MEYYENp S.V.; BARSKOV, I.S.; WINA, L.B.;,BABANOVA, L.I.; DOLITSKAYA, I.V.; GORBACH, L.P.; BUTSIXO, S.S.; TRESKI&SKIY, S.A.; SVOZDETSKIY, N.A.; PRYALVKHINA, A.F.; GROSVALID, M.G.; MODEL', Yu.M.; GORYAINOVA, I.N.; MEDVEDEVA, N.K.; MYALC, Yo.G.; DOPROVOLISKIY, V.V,; KHOROSHILOV, P.I.; CHIKISHEV, A.G. Brief news. Biul. MOIP. Otd. geol. 40 no.3:122-154 MY-Je 165. (MIRA 18:8) ZVEREVY V&PO Role of the chemical composition of the atmospheric precipitation in the formation of ground,waters in the Medvenka 334sin. Trudy lab. gidrogeolgobi- 45:62-66 62M (KM ~15:6) Medvenka Valley-Waterl Underground-Composition) (14edvenka Valley-Pre,cipitation (W~teorqlcgf)) 1117F IT! IMP OLIKHOVSKIY, I.A.; ZVEWj_VpS.,: KRINICHANSKAYA, L.A.; R-inimali uchastiye: NMI, L.h-.1 'T15KIN, A.S.; IUJDNI'TSKIY, B.I. I ncr Aasing the resistance of tirebox hearths in oteam boilers with ~liquid elag removal. 30 no.321PI-6-19 165, iftupory- (MIRA18:12) 1, Krasnodarskiy filial Nauchno-wissledovateltakogo Instituta po montazhnym I spetsialinym stroitelinym rabw6un (Vor Ollkhovskiy, Zverev, Krinichanskaya,. s/186/62/0011/003/022/022. E075/E436 AUTHORS: Abel'skaya, N.B., Gracheva, Ye.G., Yershova, Z.V.', Zverev, V.S. Maslovskaya, V.V. , Rudaya, L.Ya. TITLL: Pr'eparation of long- lived Bi210 PERIODICAL: Radiokhimiya, v.4, no.3, 1962, 377-378 210 TEXT: To confirm the investigations with isomer Bi reported by L.I.Rusinov, it was essen.tial to obtain a sample-of Bi containing a large quantity of the isomer and a minimum quantity of other radioactive admixtures. Theimetallic,13i subjected to irradiation was thoroughly purified from Po an&the elements activated by neutrons Zn, Ag, CdV Co, Sr, Sb,. Se, Te. A sample of Bi enriched in Bi210 was obtained from the purified Bit SUBMITTED: May 29, 1961 Card 1/1 le 9 is a 0 Is 0 a 0 All a e ss~$ M a 4 A e A 1& 4 a 0 4 a a 0 0 0 - a f Ia 11 11 1) 4 is it 11 is JS lP U IS )d is 34 is iv x 11 v w 0 if 1, a I tz 1) 14 are to AA -0, 0 00. t,f I Calorimetric determination of small quantities of wilita solutions. mineralis and Irclinical produtts I ~ 1'. ZV1414,_ 1 "IM, Ivi. i wOf Ilowel a! ~~-,K I., Fv I MA Il A - t I' w ~ - t -4 M.4 -4-wtok 1 ... tl-l~ 1-4 '1.. .1,11, .4 16"111.0 A -0 1l.1So%l.0hF.I. It,(). civil- t1w 1-t rv,%III4. Ily fill, 181.111.4 vall Ill"I flit it iii-Ils. k iiwn I.- add -b 0 Vw A-t, -4 P pill 1-~ vt- ~ tit it, Ow, -41, -1 It, I.M.1111V by Ow whIll. .4 vwf%, 11,1NI., %hwh Ill.. 00 c,,tiil,lcx 411d 6.11134 0 00 atul j1h4ftIllultv 44 Pv. Ulk. till, et'll'"llolt In 144tr tijbit call .0 0 go HIM) Ile by ftwam, to IdItArli, .0 viffit, Tl_ * 10 1 0 01M of F I, Avoid.1 by Stir a,14111. W AIC?,. "It. h 1,"in. 04 tittAftglai,ttv Lit MQ, _66 go w 19:12 itwILL'iVir is Ifivrn. S. L. M-hitlLy g 40 f__ ~06*11 IV- A 9 00 f A%4k .114ituruital ttitwust ct&%%WK&lwk 600 1. $507 -.5 U Vt AV it tv to 4. op Ic iF of [I it It x 'a I I., k b, 1,. .6 -1 1, 6 0 0 0 00 0 6 4 0 0 0 a 0 0 * is 019 0 0 0 0 0 9 0 4 0 v a 0 a 04 0 a 0 0 0 0 00 0 * 16 .* o 0 6 0 0 0 Co 0 0 0 a 0 0 0 . . ........ ... 00 A -0 00 t 00 00 T .00 1u /A Cris. warmy. bad be" for .00 W. Molt- lw~doodjjtp of tbCw ) =00 0 aouM be *4"- 9. 00 hMpho. 0 w &cW iby WMES9 - rt&oitd wi* torts"cl =00 0 !1 Ma r~ ji ikvddid by A", WkKb forum liAIV* *0 40 COO gas *00 too 00 WTUAWKWAL LIMArm cwWjrAj"N aloe v Mir.. sit Is 0 U a to a 1311 so 0 so 0 64.601 Oto 0 0 0.0..r Q 00-0-000 1 -0'0 0.00-00 G. 0, 4:0,.0. 16's 0 co a 0 0 WO 0 0:0 0 0 a a 0 0 44 0 07 0 0 0 e 0 DNESTROVSKIY Nikolay Zellmanovich; POMEMPTSEV9 Sortq: IlikoUyevieb (deceased]; V&ERW,'VV,[Aeceased1; SHPICIUWSKIYj;Ye.S..j kando tekhn. nauk, retsenzent;,POMIKOV, N.N.p inzh4i reteenzent; RZHW.-- VIKOV, V.S., red.j KOSOLAPOVAg E.F.t red. izd-va; BERLOVp A.P.q. !tekbn. red. (Brief manual on the treatment of nonferrous metals sind alloys] Krat- kil opravocbnik po obrabotke tovetnykh metallov'i 61avov. Mosk-~Rg Goa. nauchno-tekhn. izd-vo lit-ry po chernoi i tmmtnoi metallurgiiq 19610' 410 PO (KIRA 140) (Nonferrous metals) (Metalwork) 1. KAGIDSON, 0. Yu., FEDOTOVA, hl.V., ZVFHZV. V.Vqv 2. USSR (6oo)- "Quinoline Compounds as a Source of Medical Preparation--VII14 Anesthetics of Ahe Serles .of Amides of Chinchonic Acid," Zhur. Obsch. Xhiw.~ 0, No 22, 1939. Synthetic and Pharmacological Dept.. All-Union Sci-Res Inst imeni. S. Ordzhoiiikidze, Moscow. Rece ive(I 17 Ju.Ae 1939. 9. Ift Report U-1626, llJan,1952. ;'J'i! 311 0 N!41 a Of SI 49W too -1W of k*61=1 Oakadai d to is ftub-Iiii 4 T" b'01- ""tiM Od lvdka UMP In do (am an Ok. and Kvtone Pmam was rommil .00 tO bQ In ac-ltd- T*b the mtthod introduod by Stmub and Glyrrju 11w titt). 600 Prwcdttm is 4ellathed. A. A; wbifficil no* 60 .3 0 too : 0'.3 too ISO 00, "0e tAITALLWOCAL UTIVAYWIF CLAISOICAT1010, slow IrIT-SPA v An A 1 11 Od 0 -1 a u x 41, 'Pat Aili 0 p to or st a Ot a It ff 141 it o 9,00 0 0 0 0 0 9 0 0 41 1* o 0 .0 0000 ad M, 00 Of A 00 00 v of 2 it; 4 Is is JA A if At a a 41 a As a ago Tc#Uq 6t We st (31 10im ~tl i l! /farm. Pr#*. 1935 N by Sir 203k InVAIA lhowril Jbill high hilv Aluillillalb"I ' -0 li i W d T -00 1" t ll- "v II tlctclruM I)Y lIcxmltllttlkYh is Pr4xltk-V -00 -00 -00 -40 too coo goo coo see see Woo lie .. . .. ....... I L A MITALLUPGKAL 4.11tRATURE CLASSIFICATION A of io~ 16JONJ -1. lift, 0.9 4:11A31 C.1 (Ml 114 1M U AV 00 It it a It it tt it K L 1 04 0 ' W 6 7 N M 04 0 0 0 0 0 0 0 0' 00 0 IS : : ~ 0 o 0 0 0 0 * 0 0 0 9 0 0 to 0 0 0 0 6 0 0 0 0 0 0 & 0 0 00 as 00 00 0 f 0 0 4 000 0 * a 0 0 Q~o SOURCE COM".. I)ft/Oll.l./66/000/009/1())2/10)'I AM'HOR: Shukahunov, V. Yo.; Zvorov,,.V. V. CIZG: none TIT11": Autormitic compensation for dynaiRic error of temperature transducers-with high thennal inertia SWRCE: IVUZ. Elek-bromelchanika, no. 9, 1966, 1032-1037 .TOPIC TAGS: temperature transducer, circuit design APSTRAC -,-: Tho sciantific rosoarch laboratory of automation of production ,proco5sas at tho Novocharkasslc Polytochnical Instituto has dovolopod and tostodl j.a circuit do3ignod for correction of dynamic error in thormorocoptorr. with i.t.-Imo constants from 800 seconds to 1/10 second. Tho principlo of tho olootrio correction is sorios connection of the tomporaturo transducer and a connocting link whose transfor funotion is tho invorso of tho tranaror Punctlvai Jo'L the transducer. 'Since tho transfer functions of industrial thor-morocoptora oan be approximatod by an inortial link of firat, socond or bighor ordors. tho corrocting link taust bo a first, socond or hij;hor ordor difforontiating link.. i Tho dovico dovolopod is baGo4~ on an operational amp4fior wVi;h automatic. zero stabilization and flexible feedback. Orig. art. has: 3 figures and 14 formulas. JJPRS: 39,1833 .!SUB CODE: 09 SUBM DATE: 30Dec64 ORIG REY., 003 UDGi 62--524681.2.083.8, LIC -rc t -1 /~,~ ~ i - I I - ~ ~ BBLUGIN, DPA-, kaxdidat voyennykh nauk, polkovalk- polkovnik; DANILIN, T.N., inshener-polkovtM; IrOmRiN ",*A.i~~ polkovnik, redaktor-, KONOVALOVA. Te.K.. tekl6dchotkiy'redaktor. [Artillery -reconnaissande by inst*umemtsj* textbook for artillery schoolej Artillariiskaia instrumentallikaii razvedks~ uchobnik dlia artilleriiskM uchilishch, Moskva, Voez.tzd-ve~ K-va obor.SSSR, 1956. 483 p9 (Kim 10 3 6) (Kilitary recomnainuance') (Artillery, Field aid moustaix) AUTHORS; Zverev, V.Vi~ (Engineefl, and Utrbbin~ B.V. (Ejjgj~eer). TITLE., Theory and Practice of Packing Coppipr and Alumint' Gorea um :of Power.0ablea (Teoriya i praktikk i I otneniya;rhedn1ykh i alyuminlyovykh shil milovykh kabley PERIODICAL: Vestnik Elaktropromyahlennosti, Nrl'.11, :1958, pp.56-60, (USSR). ABSTRACT: Heavy-seetion power cables are stranded:f6r,flexibility; then the conductors are,packed by 'e6mpre 'ssion ini: special rollers to increase the filling factor and reduce!th6 external diameter.. The benefits that result from this process are enumerated., A simplified account is;given of the processes that o.ecur'during the packing of the: conductors. The process is conside red one layer~at a time and it is assumed that the first liyer is packed before the second,lay is applied. "In the usual constructiono where the:aonduotors s~xe not packed in this way, all the strands are of the same diameter", but witb. the packed construction each radial: laye~r should ~oontaln Card 1/2 wires smaller in diameter than those tenouth it so th6t Theory Cables. and Pr~ctice of Packing Gopper and Aluminium Cores of,.Fourer the wires lie correctly on-thei underl-yi.,~g packed, layers. Equations are given by means of whi'ch wire'diameters1or successive layers may be calculated. Axpressions are also given for the external diameters pfloonduotors. ;The; *quipment required for packing eonduetors In the.faetory is described. The rolls used to puLak ~he conductors: are of special profile and a descripiioii of.these is given.. Types of profile used are sketched in Figs.2, 3 &A. There are- 5 figures, 1 table. SUBMITTED: April 24, 1957. 1. - Electric cables-.-Cores 2. Electric cablee-Constructi6n; Card: 2/2 SOV/110-158-h-~2!2/28 AUTHORS*, Pashchenko, V.Ye. (Engifieer), and "Zverei,~ V.V. (gngineer) (FO; TITLE: Discussion 0~tngineer I.'V..Xuranov1d' Axticle poirodu stat.1~iInzh.,I.V* Kuranova).: PERIODICAL: Vastnik 216ktropromyshlonnosti lir 111 1958, p.71?~ (USSR) ABSTRACT: This is a discussion of :the' previous'*article on 11 Increasing. the output of aable-Making machinerylgo: These authors claim that although Kursnovll~s iddis are, all 'rtlght in principle kis approach is over-simplified. Yor example,, cabie-making machines with armoiiringheada usually have additional heads for applying paper, and; these cannot necessarily be speeded-4p in the samelway. In particular, it is difficult to mlaintain:constant ' tension of the paper at variable maohineispeeds. Kuranov's suggestion may be applicable to simple machines with no paper-winding headso provided is'possible to : change all the reels at once, but even then the increase Card 1/2 in output will not be so great as he claims. Each A ~i:: - - - - - - - - - - - - - - - - - - - - - o LEI pm oyma vlifk*d~t gj 19 ~t _t. Ij r - ;, - - - ~.', - / , .. -1 t V i-, q, -jifl An j ow, ark rA td that a that Lamix"OVE Eauxleuifll Judi, bell! I indi wtft~qlofidd q;,p4s. cojdriqq.~ W, t -v -- ---- i7, lz t 'j, A fs V~14 -Ti; jilt., Zj., i". , AJ! OV Feasibility of Absoeure calibration of s01114 emitters and receivers iwine, radiation pressure as a basis and not' tsing A radiometer. Akust.zhurS2 no.4:3~~--)79 O-D '56, (KM 10:1) Gorlkovakiy isaledovatellskiy fi%iko--tekhI.-Licheskiy Instutut pri GorIkovskom &sudaretvennom instututa. (Sound-Measurliment) JI IV i1i I i JL`~ lk- UN 1 A 46-4-3/17 AUTHOR: Zverev, V.A. TITLE: The Effect of Directivity of a Receiv'Jng System on the Mean Intensity of a Signal Received as a Result of Scatterin.. go ustroystva na (Vliyaniye napravlennosti priyemno,,, spyodnyuyu intensivnnel(JI si(.;nala, prini.mayemoGo za schet rasseyahiya) PERIODICAL: Akusticheskiy Zhurnal, 1957, Vol jii,z Wr 4, pp.329-336 (USSR) ABSTRACT: There are two ways of discussing the propagation of c;;, t:) waves in a medium with small random non-uniformities in the refractive index. Obukhov (Ref-5), Chernov (Ref.4), and a number of other workers have solved:tlie problem of amplitude and phase fluctuations of a wave at some point on the wave front as functions of the distance L tray- ersed by the wave in a non-uniform medium. In pape rs con- cerned with scattering of'waves (Ref4.1, 2 and 3),the mean intensity of scattered radiation at some an'gle 9 to the direction of the wave vector of the undisturbed wave is computed. Which of these two methods is adopted depends on the directivity of the receiving and tran8mitting antennae. Card 1/3 :,C 13ff'oet ol' Dir:~ctiv-'t:r D-P a On .16ho "laan 20~.E!ive~d as ia -R,,~siult of Sda'-te Of CL u r In -;*ac t ths case of nou-~. e the diMen li3.~ectioncj, antoriana s4 ns of --Te lc;3es the the first Q .i used. Tl--- cs~c:- U.*"!"'d Lr- '110 Case Of al antemnaQ. V v L)we it, J.3 sliow-a i-n the e 3 -C 1).b 1"'rn'3r U').at these c~-j.teria im;uf ficient. Ia ono lmo%v t'Aljo "diroctivity 01-:' j-,-.jiatiott fl-7):ft thO P-On-LUlif,02?l-aiticoll (-lullis cor.'-,o, i~3 d-3-~ined iii '~Le ,r:: u -1 s' Orlt '-.) ap e r r e s s o) -L s a:c o d s. r 1 v for t'-.- dependence -.T!Oun iatcm-~i C i;7 of thr- reccivcd Jntekisity dri~)Gt].ViJu-y 91. W.Q :,,yot'cri. It is as,'Oumbd zi-a-b the ---lacc ')ll '11-ul t110 u of -ijr0na--'t".Dn Of tho vrc;Arcs ~ul-l-'. `V-1tc. ";.cattea~111,c- -J-3 in the re-pon the in:. It i~~ Ollow-.1 IthalL; in orO4:.--.r t-j-) oblllpa~:~ t-lue -G U---red into r, ~; -' ~y i z 3ulf ca 1. '~ , r, 0 - a~. 1".. to ir. Wic d-* '.. g. ~ vv h i c la e e d U-I'a 2 t:md Card 2/3 46-4-3/17 of D-*-:u'-~;iV-,.'-"-Y t u of a f G U'll .-iori"Achn S t iLit- T-TED January Library of Congress. Card 3/3 1. Antennas 2. Microwave scattering Scattering-jntinsft~-Theory fl!""fli raw 11111z ZVDF.*,N, V. A. "Propagation of a Modulated Wave In a -Randotaly Inhomoleno.uq ~Dadiuw. with Y~kLACHOI, A. L., "Frequeney Modulation Applied :to Acousld*c Ream:rements" 4. IC Mo5covj 26 I-lay o hn 58, pape presented at the 4th All-Union Conf. on Acousticri) N. U., ZV I . 4 "The Wave Propagation in Mediums With Rand(za Heterogeneities". report presented at the All-Union Conference on Statistical Radio PIWsics, GorIkiy, 13-18 October 1958- (Izv. vyssh uchev zaved-Radiotekh.-, vol. 2, No. 1,~pp 121-12'171 COW= card under SIM-ROV, V. I.) SOV/46-4-4-4/20 AUTHORS: Zverev, V.A. and Nalacher, A.I. TITLE: Measurement of the Intora(.~tion of Sound Wavk, in Liquids tlzmereaiye vzaimodestviya rvulcovykh voln V zilinnot ~h) ya PER,161CAL.- Akustiihsakiy Zhurnsl, 1958, Vol 4,, Hr S, pp 321. 324 (USSR) ABSTRACT: Zverov and Ocrellic (Ref 1) showed experimentally: that if a high-: frequen,ay va7e field interacts at right-anglez with a low-frequen,,.y f iv3A , then the high-xrequency va-so ip. phate modulated. The present paper describes an appr=imate, ealculation and quantitative ineaa,urements of iuch eta Interaction. Thl; interaction IIs duo to uon-linearity of the medium which appeara as non-linearity of the hydrodynamic equations and the equation of,state. The equation-or-state non-linearity; predominatea and calculations are based onl:the asiiumption that the hydrodynami,-. non-linearity can be negleated, Tne phase modulation of the high-rrequeacy wave is due to a periodic change of its V:elocity in the field or the stronger low-fraq!u6n-.'~ wave, The waves studied by the a*uthora had frequenciea of 1,3 x 1()66/a and 3 x 103c/3 respectively. The experimental torhnique, employei follovi6d Ref I. The apparatus ueed in chown in Fie 1, It eonsists of a high-frequency Card 1/3 generator 1, a- rhane-ahifter 2, a hIAOx-fro(Illan,"Y amplifler 3, a balancing Measurement of the Interaction of Sound Waves In LiTaid,,.i amplifier 4, a datenf(:r 5, a low-frequenty ampiltier and filter,6, a ZG-10 low-froquency generator "e. a VKS-7 valve voltmeter 8, a LV-9 valve vol-baeter 9, a Plexiglar, bath 10, a quartz vibrator (producing 1.3 x 106c/s) 11. a qi.artt receiver 12, bellows 13 and an alectiodynamic vibrator tproducing 3 x 103d/a'1 14. Meas"ementLq were made in tap (mains) viaten in 93.5yu ethyl alcihol, andin~21.6y* NaCl solution. Fig 3 gives the vertical distribution of pressure above the centre of the high-frequency vibrator. The ordinate give the values of the logarithin of the voltage produced by a BaT103 probe used to measure pressure, -while the abscissa gives the distance from the vibraror. Distribution of pressure tin bars) along alhoriEontal line away~from the high-frequency vibrator is given in Fig 4. In both Pigs 3 and 4 eurV63 1, 2 and 3 denote tap water, NaCl VDIUtlOa and ethyl alcohol respectively. The pressure distributiors --van in Pigs 3 and 4, show tho; the high-frequency waves are not planar. , This fact vms allowed for in calzulation.,s of the rate of change of the sound velocity~'c wLth prer-31are p (d,:,/dp). The val-ae of d,.-I/dp ivan obtained from the measured phase modulation of the high-frequency TA-?,ro. The results obtained are Card 2/3 given in a tAble on p 324. The sixth column gives the values of dc/dp Measurement of the IntIorat%tion of Sounl Waves in Liquids SOT,/46-4-4-4/20 obtain&l by the Present authcrs, the soventh column gives dc/dp~ calculated frcm static mea-surements des cribel In Refs' 2, 3. From the, resulta . obtained the val-jea of the constant b vhich occurs In the equation of state F = ap + b~ 13 (F and are departuramIof pie.-psure and density from their equi'libriim valueavx, a the s. U quare of so ad velteity at infinitely ama.L1 aensities and b a constant for a given medium) were obtained f or the three liquids In-, es ti gate4. Tho values of ~ b and b/& are given in the third and fourth columns of the table. The values of the ratio B/A which occurs in the equation of state F = A?1A1o t: were al5o obtained and are tiven in the fifth column of the~table- The latter equation of state comen from Ref 4. rhe authors estimate the accurany ot their values of d~,,/dp to be 'rhore are 4 figures, 1 table and rp roferen-,o!~, .3 of which ar-3 -kmor5!-,-.qn P-nd 2. Soviot. ASSOCIi,,T.1011.- Gor,~"-,.rckly &o,?idarnt'vennyy (Gurlkiy State University) SUPE1 TTED.- Seritemoo: 13.. 195,,7 Carl 3/3 69946 SO'V/i4i-2-4-1/19 AUTHORS: ' Denisov, N.G,~ and Zverev, 3 TITLE: 1 ion in Some Problems in the Theory of W~xe impagLit - Media With Random Irregulariti es (A Review) PERIODXCAL: Izvestiya.vysshikh ucheV--.i;ykh.zavedeniy, Radiofizika, 1959t Vol 2, Nr 41 Pp 521 542'(USSR), ABSTRACT: The present review discusses method ,~:,'of soluti6n of , of wd~Ve.; phenomenological problems in the thelory propagation in media with random iire~gularities~ isoo ; ' atistica .l ! the A t the methods of calculation ot, , , properties of the.field of a,--4a-%,e whith has 'passed I LK 6ous laye,r,'* Amo'ng thest statis- through a nonhomogen tical properties are the amplitudi iind phase fluctuations and the correspon4,ing:,correlatlonl'functions. ; ' t The discussion also includes~:!thediffraetidn a , irregular screens and certaiji problems in catter~ng, theory. The review,:covers,M"ainly those topics which have not been considered in!i~existin reviews and mono- graphs, e.g. those by Chernov a-a'd,R&Iiffe (Refs 1, 3). Moreover, in distinction to'theiexisting'reviews and Cardl/2 ncludes a~ discussion monographs, the present paper i 69946 SOV/1111-12-4-1/19 Some Problems in the Theory of Wave Propagation in Media With Random Irregularities (A Review) of the regular refractio:d of wairas*-in anon-uniform~ layer. The paper is divided into,'' four ',z ect ions namelyz 1) geometrical optics approxtmation; 2) the method of continuous perturbations; 3) d"ffraction of waves by an irregular screen and 4) the scattering of waves by small irregularities.', There are 31 references, of whic hr 19 are Soviet, 4 German and 8 English, ASSOCIATION:. Nauchno-issiedovatelfskiy radiotizichaskiy institut pri Gor1kovskom universitete (Scientific Research', Radiophysics Institute of, Gorlki~OU~~i~jv-e-r-s~lt-) SUBMITTED: June 15, 1959 Card 2/2 69077 0 of) S/.126/60/000/01/0121/051 El 921E3 8 2 AUMORS: Zverev, V.A. and Orlov, Ye.F. TITLE: Mq_uT~ Tol~ the Measurement of the Spectra and'! Correlation Functions of Low-frequIency;Processes':: PERIODICAL: Pribory i tekhnika eksperimenta, 1960, Nr 1, Pp 50 - 57 (USSR) ABSTRACT: The instrument As.111-ci ed-schejna.t*q.4lY in F~Lsure 1. S, Wo a :a light films In" I -and'-n 0: ~.oc 0s;9 be" 21 f 9(x and :Kx) are recorded on the ilms alonji'th4 "window" having e~ length D 00 ifint The make 7 ~~3. transparency f(x) of,the film. 4isa funqtidn~of x' onds to a time-depandent proceso corresp f(t).x = vt where ~v is the velocity of motrioli. of the film during the recording of the signal. Th 'e light transmitted through the superimposed f ilms II and ri 1~ ;2 falls on a set of photo cells. The current of;the phot Card 115 6S*77 3/116/60/000/01/01:2/051 Equipment for the Measurement of the SpecUV/an&Ramalation'~ 'Functions of Low-frequency Processes cells is proportional to the light flux'impinging on it and can be expressed by: (3), i B f(x)g(x )dx -D/2 is If the film n having a transp~Lreney. g(x j moved with respect to rl2 by a quantity the current is: +D/2 i B f(x)g(x dx (4) 4 The quantity measured by the meter' 3. (Figure 1) aixd recorded by a registering device: 2 is proportional to -the correlation functtn of the proces.~ t f (t) :&;Ud g (t) Card2/5 at the point By changing which can be* done by AMMMMM. mr-T, _0 69077 S/l2d/6o/ooo/oi/012V05,JL 11122 11A~12' Equipment for the Measurement; of the Spec a/H - Correlation Functions of Low-frequency Processes moving one of the films with respect to.the other, it is possible to determine the type~of the.correlation function. In order toidetermine the spectrum of. f(x) it is necessary to express g(x) in the form: g(x) cos k (x,- (5) n k then: with different k if ,n n i BDC c o6 '(k (p (6) n n n: which shows that~the amplitude of~tfie output sijnial 'is proportional to the spectral ampliiuda'.of the signal :prineLple The instrument constructed:~on the above: had the frequency.range from 1/3001ito 3~c/s. The averaging time couldibe as, high as 1301) sec. Some of the Card3/5 experimental results obtained by mean:5 of the instrumen Equipment Functions Card4/5 69071 S/i2o/60/600/01/012/051, for.the Measur ement of theEIAMP~nd Correlation of Low-frequency Processes are shown in Figures 2-114 Figur,e'3 shows a comi)arison of the correlation function measured by the instrument, (solid line) with the calculated r6sult ts.which are indicated by the crosses. Figures':'11 show the response of the sytitem to a sinusoidal signal for various,window lengths. Figure 5 gives the cross,correlation function for a pulse train having a mark-to-,spa6e ratio of 1:2 and a sinusoidal signal. Figures 6-8 d1how the oscillo- grams of certain processes and -their correlation.'and spectrum functions over a certain1frequency bandwidth. Figure 9 phows the acceleration procesiies in a s'eat of the car, type M-21 "Volga", produced at the GorIkiy, Car Factory and the c,orrelation function of the acceler- ation curve.. Figures 10-11 give the recordings Of 'human heart signals and their autocorralation functions. There are 11 figures and 4 referencesi,:3 of which are English and 1 Soviet. 85992 o4zo 0 S/141/60/ 003/004/018/019 E032/E314 AVkHUR: zv TITLE: Dispersion Properties of Media Containing Random. Irregularities PERIODICAL: Izvestiya vysshikh uchebnykh Z'#Itvedeniy; Radtofizika, 1960, Vol. 3, No. '119 PP. ~23 - 724~ TEXT: In a previous paper (Ref. 1) the . present author showed: that during the propagation of a;modulated wave in a medium containing random irregularities, the change in the character, of the modulation is similar to that in the case of a dispersive medium. This change is determined by the value of the phase invariant: ((P (P )/2 (Po 1 2 (Ref. 2), where (p0 is the phase of the carrier and (Pl,2 are the phases of the ,side compone Ints. The calaulation given in Ref. I wa5.concerned only with sm IAll values of 2 It follows from Eq. (1) that the correlat ion, Card 1/2 8599"! s/i4i/60/003/00 4/018/019 E032/E31.4 Dispersion Properties of Media Containing Rar tdom Irregularities, function for the phase invariant can be written in~the form of Eq. (2), where ~Oi(~)(p are tile correlation functiona for phase changes on frequencies._ w.i and w J:~ In accordance with Eq. (2), the spectrum of is the' sum of tile spectra of the correlation functions (Pi (p W J. Using the method put forward by Tatarskiy in Ref. 3, ageneral expression is derived for the correlation function'rfor the phase invariant (Eq. (7A The derivation is.based on Eq. whial.was detailed' by Tatarskiy in Ref. 3., There are 3 Soviet references. ASSOCIATION: Nauchno-issledovatellskiy radiofizidheskiy institut pri Gortkovskom universitet (Scientific Research Radiophysicii Ins-titute of Gor1kiy University) SUBMITTED: April 26, 1960 Card 2/2 86866 S/141/60/003/905021/026 E032/E314 f, f3 00 AUTHOR: TITLE,. Scattering of Modulated Waves by,''Random Irregularities PERIODICALs Izvestiya vysshikh uchebnykh~xavedeniyj 4 Radiofizika, 19609 Vol. 39 No. 5~p PPQ, 903 - 90 TEXTs The study of the propagation of a 4riodulated wave,: can be used to obtain information about the de:~;ree:,of correlation for fluctuations at different frequencies. . The degree.of correlation can be determined by measuring the:;mean square of the "phase invariant" (Ref. 1) Wo - )/2 ((F1 + W2 where in the phase of the c,;.rrier and (p,,,, is tho 0 phase of the side components in the camt of complete- correlation of fluct,aations in phaseq flu~c'tuat.ions in the phase invariant vanish.while in the complete a,bsence of.: Card 1/6 86866 S/14i/60/003,/005/021/026 E032/E314 Scattering of Modulated Waves by Random Irregularities correlation 2 2 0 (3/2)w (2) 2 In a number of cases, ~p can be estimated,from .-the mean square value of fluctuations in the level of Cte~.receivedl signal, In the case of scattering by weak.irregularities, correlation functions for the scattered field, phase and amplitude, at a large distancefrom the scattering' centres, are practically identical. A sufficient condition for the identity of the correlation functions for the field and phase is a low value of the modulus of the mean square fluctuation of the complex phase. The present author determines the correlation of scattered fields at different frequencies and assumes that the angle -V at which the scattering is observed is independent of frequency and that dispersion is absent. Assuming that the scattering occurs on weak Card 2/6 86866 s/i4i/60/003/005/021/026 E032/E,314 Scattering of Modulated Waves by Random IrrO .gularitie irregularities, the scattered field at a latte distance fro.m*the scattering Centre is written down IM the form 2 E k sin,x 0 0 k (3) 41vR where E0 is the amplitude of the incidentirave k is the wave vector of the incideilt valve, 0 x is an angle representing the polilrisat'ion, R is the distance from the scattering volume and C is given,by k k V Card 3/6 86866 141/60/003/005/0211/026 S/ E032/E314 Scattering of Modulated Waves by Random Irregularities In this expression, Ac is the fluctuation~in the refractive index, K = k - k where k is the wave vector of the 0 scattered field and 2kosin(..9/2) (5) The required correlation is defined by 2 2 2 E k k sin x o 1 2 E(k )E(k 6 EV (6) 1 2 2 k k (4"trR) 1 It then remains to compute the quantity S.i C.;F it is X? shown that for a spherical scattering centre having radius R the latter quantity is given by Card 4/6 HIHNP 11 N: 86866 s/141/60/003/gi)5/021/026 E032/E314 Scattering of Modulated Waves by Random Irregularities information on the order of magnitude of the scattering centre and its form. There is 1 Soviet reference. ASSOCIATION: Nauchno~-issledovatellskiy radi6fizicheskiy institut pri Gor1kovskom universitete (Scientific Research Radiophysics Institute of Gorlkiy University) SUBMITTED: may 5, 196o Card 6/6 ZVEM IT, V.A., KAUGHEV, A. L Application of frequenc7 modulation to aconstic measurementso Akust. zhur. 6 no.2;20-212 160. (MIRA 13:8) 1. Nauchno - isoledovatellskly radiofizichaskly institut pri GorIkovskom. gasudaretvennom.universitete. (Sound waves) s/141/k/oWoog/OOM17 E192/E382 AlYfffbRS: Zverev, V.A. and Orlov, Ye.F. TIA-A Information transmission Rate in~a Channel With Multipath Propagation PERIODICAL: Izvestiya vysshikh.uchebnykh~zavedeniy, Radiofizika, 1961, Vol. 4, No. 2. pp..282 - 292 TEXT: The problem of channel capacity of multipath communications channels with constant or variable~parameters has been considered by various authors - R.L. Dobrushin (Ref. 4 - Teoriya veroyatnostey i eye primeneniye, 3, 395i 1958), B.S. Tsybakov ( Radiotekhnika i elektronika, 1958 4, 1427 - Ref. 5) and J. Feinstein (J. Applo Phys., 26, 219:'1955 Ref. 6). The problem is investigated further in this paper. It is assumed that the investigated channel4s in the form shown in Fig. 1. The signal x(t) propagates through a multipath medium by various routes and at the receiver it is in the form Card 11Y(19- S/141/61/0WO02/oo8/017 Information transmission Rate .... E192/E382 Y(t) arx(t Vr) r=1 where a r and 1~r are the damping coefficient and the propagation time for the small r-th path, respectively. The frequency characteristic of the mult1path channel is written as: 12 --rf k(f) rai ar e r The output signal contains correlation couplings,of the type:: n n B y a ra SB X(-t + S' ) (3) r=1 s=l F, U T 1 W 4 i1i 1 ;411-1 L- 1 14,9411 H i LIS, i I RNA 1 19 11 1~r ", ", , -, 11 ~;` j ~ ii kij ~j ii IIrl 11 1111 *4EM win a RE42 Lq HVI I'T.Atf (41 7. U1 I - '1 -1 1 S/141/61/004/062/008/017 Information-transmission Rate ... E192/1-3,382 where B and, B are the autocoridation,functions of the y x signals y(t) and x(t) . The signal at the reqieiver, together with the noise z(t) , appears at the output of the communications channel, where the total signal can therefore be expressed as: n V(t)* arx(t --i-r) + ZI(t) (4). r=1 The information-transmission rate C when"the signal at thel input of the channel has normal Idistribution, can*be expressed by (Ref. I - K. Shannon - The Theory of Electrical SignaI Transmission in the Presence of Noise, IL, Moscow, 1953)~ Pef- 7 P. Elias Proc. IRE, 39, 839, 1951): Card 3/N OL H: Nil S/l l/ 6 1/0 04/002/oo8/017 Information -.ransmission Rate ... B.192/E.382 1/2 C lim log M T-- T where M is the correlation matrix of the output signal:~ IV N'N V V where v are the values of the output signal at'the sampling time intervals. :On the basis of Eq. (7)'it is palssible to express the channel-information capacity~in terms of the spectral functions of the signal (Ref. 2 - Cybernetics. izd. Sov. radio, Nil., 1958 - 14.1fiener; Ref. 8 -Dolcl., Ak.nauk'SSSR, 99, 213, 1954 M-S- Pinskar): Card 4/1-5,P s/14i/61/004/002/008/017 Information-transmission Rate .... S192/E382 I Y(h) F I yuj) 11 C -L log (I + 109 1 + T T 1401, (8) .2 where ;Y(f and ~Z(f are spectral densities of the signals y(t) and z(t) If the signal and'noise spectra (62 and o~) are independent of frb4uency, Eq3. (7) and (8) can be written as, .2 y log IRI", C F log 1~ + 11M T-- T (7a) + .2 k(DP y df. C log I k(f)JI df -Card 5/1--&j.). S/141/61/004/oo2/oo8/017 Information-transmission Rate .... ru 9 2/ E3 812. where It is the matrix of the correlation coefficients of, the signal at the output of the channel (corresponding to the matrix 1.1 In the case.of a two-*path propagation., it can~be assumed that the signals received have amplitudes' al' and ~a2 and that the relative delay time is -_-, The frequency characteristic of-this channel is: 2 2 2 k(f)' a + a + 2a a cos (2-- f y' 1 2 1 2 so that the channel capacity is given by: F 2 2 C. logli + OL(a + aP + 2aaa cos(21~-f'_'~):df. (14) 2 0 Card S/141/61/604/oWoo8/o17 Information-transmission Rate .... E192/E382~] 2 where a op . The effect of two-path propagation is X/ z illustrated in Eig. 2, where F is the bandwid,th of the transmission channel. The channel capacity ofa system with' n-path propagation, having a maximum delay time T P and i spectral distribution for the amplitude of the received signal K(f), is also investigated and it is shown that in.this case the capacity is expressed by: y Fe C Ei _2~ (10 2 ln 2 y 7Z--- where Ei(x) is the integral exponential function''which can' -be represented in the form of the following se ies: r Card 7/1~3 P, S/141/61/004/002/008/017 Information-transmiss-ion Rate .... E192/E382 n x X X Ei(x) c + in(-x) + - + + I I + (20) 1.11 2,21 n.~.hi (x < 0) where c 0-57. On the other hand, for an n-,path;propagation 'inimum if channel the rate of information-transmission is a m the energies transmitted to the receiver byvarious paths are equal and the signal delays along the various paths' are the same. The frequency characteristic of such a channel is $iven by: 2 2 sin (-,rnf 'r,)/B in(IYf rt (23Y where /'a is the delay time Fand its capacity is expressed by- 2 C F log(a + log sin (-,fiTf)/sin(Tt--af; df (24). Card 8/1-3~, S/i It V6 1/004/002/008/017 Information-transmission Rate .... r.,.i 9 2/ E3 8 2 In general, the signal at the output of a multipath propagation channel, which is defined by Eq. (4), has fluctuation ampli-' tudes a and delay times 'Due to the pres ence of a, r r large number of interfering pathe or rays, it,ican be assumed that the changes of the transfer function for.the channel at various frequencies are independent. The frequency interval for the correlation of these changes is dependent on the 0 reverberat7ion time T p this is defined by:, Jo,= I/T p (26) The qualitative estimate of a multipath with variable parameters can be estimated on the basis of the ifork of Feinstein Wef. 6)j who gave a formula' for the capacity of a channel whose output signal was in the form: V(t) K(t)y(t) + Z(t) (27) Card 9/T5 s/14 l/61/60V 002/ 008/ 017 Information-transmission Rate ... B192/1!-,382 where K(t) is a random modulation function htwing the normal probability distribution. The formulae for ;the information- transmission rate is in the form: j2 C Af log I +2 Y + R~2/[ I +,k7l (q - (28) Y wh er e Lk fis the bandwidth of the signal frequencies, K is the mean square value of the fluctuations ofl(t)*, q i- the number of sampling points for the signal at which the values of K(t) are correlated. It can easily be shown that: q jL\fT (29)' where T~~In is the autocorrelation interval for t he modulating function K(t) Card 10/f-3 S/i4i/WoO/002/008/017 Informaekon-transmission Hat e .... F.192/E382 Amult1path channel with,variable parqmete-t~s cali be si,.1it, into a number of sub-channels' whose' bandwidths',are less tivan~. the'~ frequency interval The capacity can be expressed by: r df. + R!I provided the interaction between~,the neighbouring sub-chanyieli is.disregarded. On the basis of~the above formulae, it i4~ concluded that in a channel with constant parambteis, the presence.of many propagation paths do'es not reduce the capacity of the channel; in most cases, the channel capgcity is equal~ito the capacity of a single-path channel whose energy~is equal'i to the total energy of all the "paths" transmitted',to the receiver. On the other hand, the occurrence of th~ equidistance distribution of delay times is very improbable'lin normal conditions. In the case of a channel with variable.parameters, the fluctuations of, the parameters have a significant effect Card s/14i/61/oo4/002/008/017 ion-tranpin -382 Informnt ission Rat e ... El 9 2/ 4 on the channel capacity: the capacity is dependent on the: width of the $spectrum and the magnitude of the changes of the transfer fungtion of thf- channel. The capacity of. amultipAth communications channel c;iti be determined if the following quantities are Imown: correlation in the signal produced by the J multipath propagation; time.-and frequency correlation of the amplitude fluctuations of the received signal 'and 'the width's of the spectrum at the output of the channel whenaa sinusoidale: signal is applied at the input. There are 3 figures and 8 references: '6 Soviet and 2 non- Soviet. Two of the Soviet references are translated from English. ASSOCIATION: Nauchno-issledovatellsJUy radiofizicheskiy;.institut ci~ ntific Ite:seafrch,, pri Gor1kovskom universitete '(S e Radiophysics Institute of Goi-lkiy University) SUB14ITTED September 22, 1960 Card 12/1'5,1 ZVEREV, Vitaliy Anatollyevich).dots. (Theory of probability with a supplement to irilormation theory; textbook for students of the second and third year of the faculty of radio physics) Teoriia. verolatnostei s prilozheniem k teoril informatsii; uchebnoe posobie dlia studentov 11 1 111 kursov radiofizicheskogo falrultata. Gar,- kii, Gorlkovskii gos. univ. im. N.I.Lobashovskogo. Nos. 1-3. 1961. 123 P. (MIRA 17:4) 30048, S/OOJ61/007/0*04/003/014~ .3 s/ 1/ 0 B139/BI02' AUTRORSs Zverev, A., Spiridonova, I. K. TITLEt Determination of atmospheric turbulanoo characteristics on the basis of statistical sound-fiold tinalysia PERIODICALs Akusticheskiy zhurnalp v- 7, no. 4, 196io 426-435 TEM Phase and amplitude fluctuations occurring in the propagation of, ,sound waves in the atmosphere are caused by inhomogeneities. The authors developed a method for the determination of atmosphe xic inhomogeneit ;ies and mean squares of phase fluctuations by measuring the correlation coefficient of a sound field in the atmosphere, L. A. Chernov (Akust. zh., t, rel 1957~ 39 29 192-194) established a relation between the field cor. ation function and the autocorrelation functions of amplitude and phase fluctuations for the case of crosscorrelationt AY 2 2 2 2 E72 - E exp(2A ) exp [A (R + (R 1 (2), 0 A where E is the field, A is the amplitude fluctuationi is the phase Card 1/ 4 00 8 S/04 07/004/003/014~ Determination of atmospheric turbulence ....B139/0020 fluctv.ation, R and R are the correlation coefficients of amplitude and A phase fluctuations, respectively~ The authors determined't-he field correlation caused only by a phase fluctuation. In this~case (A - 0), ln R 2 (R 1) (5) is -Talil. For O