SCIENTIFIC ABSTRACT MEDVEDEV, G. A. - MEDVEDEV, I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001033220016-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: July 12, 2001
• Sequence Number: 16
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

30526
S/194,/61/000/008/089/092
3 2@ 0 (loqo) D201/0304
AUTHORS: Medvedev, G.A. and Taraserdw, V.P.
TITLE: A threshold-comparison circuit
PERIODICAL: Referativnyy zhurnal. Avtomatika i radioelektronika,
no. 8, 1961, 24, abstract 8 IU58 (Uch. zap. Tomskiy
un-t, 1960, no. 361 65-67)
TEXT: A description is given of an amplitude discriminator,
producing a signal at the output when the analyzed voltage happens
to be i,rithin the given intcrval. The arrangement consists of two
threshold-comparator circuits, an inverter azzvll a coincidence cir-
cuit. The threshold comparator is a Schmitt trigger with a summing
amplifier at the input, so that the analyzed voltage is determined
from the given threshold voltage. Such a system makes it possible
to have the stability and rise time of the trigger independent of
changes in the threshold level. 1 r-ference. Z Abstracter's note:
Complete translation2
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ML
41232
B/194j62/000/007/095/160
D271/D308
AUTHOR: Medvedev, G.A.
TITLE: Interference stability of a receiver with finite
recovery time
PERIODICAL: Referativnyy zhurnal. Avtomatika i radioelektronika,
no. 7, 1962, abst,ract 7zh92 (Tr'* Sibirsk. fiz.-tekhn.
in-ta-;Pri Tomakom un-tet 19619 no. 40, 29-38)
TEXT: The author censiders the interference stability of the recepir-
tion of periodic (period T) pulse signals by a receiver with a fi-
nite recovery time. It is assumed that the interference consists of
a stationary flow of pulsen with an intensity I-i. The quantity pol/n
is chosen as the interference stability criterion; pl is the pl-o-
0
babiiity that the useful signal will be detected by the receiver in
the presence of interference and R is the average number of interv..
ference.pulses during the period. The receiver considered here is--'
compared with a conventional (non-inertial) receiver having an in.-
terference stability (the ratio pL/n) equal to q/JrT where q is th4
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S/194/62/000/007/095/160
Interference stability of a D271/D308
probability thzLt the useful signal at'the input of the 'restored'
receiver will b..e detected. It is @hovin that the receiver with a
finite recovery period always has a greater interference stability
than the conventional receiver and'thAt an increase in recovery
iime at any interference intensity, improves the interference sta-
bility of reception. [Abstracter's note: Complete translation.]
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AUTHOR:
TITLE:
S/194/62/000/008/093/100'-
D413/D308
Ledvedev, G.A.
The effect of a random sequence of pulses on a circuit
with AGC
PERIODICAL: Referativnyy zhurnal. Avtomatika i radioelektronika,
no. 8, 1962, abstract B-7-176 1,(Tr. Sibirsk. fiz,
tekhn. in-ta pri Tomskom un-.te, no. 40, 1961, 39-46)
TEXT: The probability distribution density function is determined
for the gain of a pulse amplifier with AGC under the action of a
sequence of pulses with random independent interval applied to its
input. The analysis is carried out assuming a linear AGO control
characteristic. The derivation of the distribution fimction is re-
duced to the solution of integral equations, and this is carried.
out for the case of the simplest (Poisson) input pulse distribution.
The two cases of large and small pulse amplitude are considered.
1 reference- LAbstracter's note: Complete translation.]
Clird 1/1

S/044/62/000/010/029/042
B108/B102
T I'2L' E 2h- c--lculi Jifficult inteGralo and of oome
.1 exr,r,-, ions in the electron model (not,.- on
-"t"Qds)
11a,e-I-Lika, no. 10, 196@'-'
-7,
U 1 'i177 (-:r. ;ibirsk. fiz.-tekhr-,. ih-ta pr-*
u::-'--' no. "'0' 1561, 59 - 63)
I
techni.jue zi, forti for t' automatic computation of integrais
noL cxpr--ssible in aana-.,,tic.,..I form, and of-bu-1ky transcendental
ox,ze@ Lorij in one or '"orL , -rameters. 3uch intc@,rals or bulky ex.@xe.-.'ions
are reduced to sysL@?.riz; of diff-rontial equations waich are solved by
3i;ulatin'- on electroaic The following integrals and
U
tr@njcendental exp+ -iolz- tl,: computtd as examples:
..Card 1/12

3/044/62/000/010/029/042
The c..,loulation of difficult intt,@L;rals ... B108/B102
C; -a12
c 0 s 1 2 .2,
L(q, dx; W(r) xp(-r /2coa )dtl
x 0
Z'(X) t exp I (,L t ) d t
0 0
i(t,,9,n) z(t)lnz(t) + (i - z(t)e- kt l-z(t) where
in
t -,4'J
t
Z(Q ne-
7
1 exp(-t'/2)
Abstracter's note. Com
pi etu, translation.]
Card 212

PETUKHOVO D.9 polko"#; WDVFDF.V, G.p inah.-polkovaik
Efficiency-promoting cc-ications troops demonstrate their
achievements. Voen.veot. 40 no.207-99 F 161. (PUM 14-2)
(Goom=Icationsp t@ilitar7)

iiuR Medvedev, GaA.
S/IL41/61/004/002/007/0-17
E140/E135
TITLE,: Th-. effect Of the Palm Pulse flux on receivers with
CapaCitive integration, I .
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy,
Radiofizika, 1961, Vol.4, No,2, pp, 275-281
TEXT: In the queuing theory a Palm flow designates a
stationary ordinary flow of random events with limited after-
effects, i.e, such that the time intervals between two successive
events are mutually independent. By analogy, the author terms a
stationary sequence of individual impulses with random mutually
independent intervals a Palm pulse flux. Then all results
relating to Palm flows in queuing theory can be extended to this
pulse sequence. A Palm pulse flux is uniquely defined by the
probability density distribution of the time interval between
successive impulses, taken as the time between leading edges of
two successive impulses. It is assumed in the paper that the time
interval is always much greater than the Pulse duration.
The case considered is a parallel RC filter loading a diode
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The effect of the Palm pulse flux S/141/61/004/002/007/017
EAO/E135
detector, at the input to a RC ladder filter network. The author
seeks the probability distribution of the voltages across the
capacitors of the filter, in particular the voltage between two
arbitrary points in the network taken as the output terminal.
A straightforward analysis follows and is illustrated by
calculating the voltage across the diode filter condenser, i.e.
in the absence of the ladder filter network.
There are I figure and I Soviet reference.
ASSOCIATION: Sibirskiy fiziko-tekhnicheskiy institut
(Siberian Physico-technical Institute)
SUBMITTED: may 9; 196o
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AUTHOR: Medvedev, G.A.
39703
S/142/62/005/002/oo6/oig
E192/E382
TITLE: Noise immunity of a receiver with finite recovery time.
The case of the simplest flow of perturbing signals
eERIODICAL: Izvestiya vysshikh uchebz2ykh zavedeniy,
Radiotekhnilca, v. 5, no. 2, 1962, 200 - 207
TEXT: A problem sirailar to that formulated by A.,M. Vasil'yev
@Elektrosvyazl, no. 3. 1957, 3) is considered, except that an
arbitrary flow of perturbing pulses is assumed. The re-ceiver
has a finite recovery time 'Ll and accepts a periodic train of
pulse hav-4;iS a period T (T -_1 'L) and a t ra @- - .-:r -
turbing pulses which is in the form of a statiQr-ary set of pulses
having an amplitude The signal at the input of the receiver
is thus in the form:
n(t) + q 6(t - rT)
r
where' 0,