Журнал «Радиотехника» | Издательство РАДИОТЕХНИКА

I.P. Zaitseva - Ph.D. (Biol.), P.G. Demidov Yaroslavl State University, Yaroslavl, Russia
Yu.N. Lobanova - Ph.D. (Biol.), ANO «Centre for Biotic Medicine», Moscow, Russia
A.V. Skalny - Dr.Sc. (Med.), Professor, ANO «Centre for Biotic Medicine», Moscow, Russia
E.S. Berezkina - Ph.D. (Biol.), Russian Society of Medical elementology, Moscow, Russia

Targeting active forms

Yu.N. Lapygin - Dr. Sc. (Econom.), Professor, Presidential Academy of National Economy and Public Administration (Vladimir branch). E-mail: L1953@mail.ru
D.Yu. Lapygin - Ph. D. (Econom.), Associate Professor, Presidential Academy of National Economy and Public Administration (Vladimir branch). E-mail: lapygin_denis@mail.ru

Following over intensively maneuvering target by an inertial goniometer in systems of one-time application

V. S. Verba - Dr.Sc. (Eng.), Professor, General Director-General Designer, JSC «Concern «Vega»
V. I. Merkulov - Dr.Sci (Eng.), Professor, JSC «Concern «Vega»
D. A. Sokolov - Bachelor, JSC «Concern «Vega»

Following over high evading target by inertial tracking systems

V.S. Verba - Dr.Sc.(Eng.), professor, Honored Scientist of the Russian Federation, general director - general designer of JSC «Concern «Vega»
V. I. Merkulov - Dr.Sc.(Eng.), professor, deputy general designer, JSC «Concern «Vega»
D. A. Sokolov - JSC «Concern «Vega»

Robust detection algorithm improving the low-level threats detection quality in prior uncertainty environment

A. N. Fomin - Ph.D. (Eng.), Associate Professor, Professor, Military Training Center, Military Engineering Institute, Siberian Federal University. E-mail: Fomin@bk.ru
D. D. Dmitriev - Ph.D. (Eng.), Associate Professor, Military Engineering Institute, Siberian Federal University. E-mail: dmitriev121074@mail.ru
A. B. Gladyshev - Senior Lecturer, Military Engineering Institute, Siberian Federal University
V. N. Tyapkin - Ph.D. (Eng.), Associate Professor, Professor, Military Training Center, Military Engineering Institute, Siberian Federal University. E-mail: tyapkin58@mail.ru

The determination of effectiveness indicators for multilateral aimed activity

A.V. Ilyichev - Dr. Sc. (Eng.), Professor, JSC «MIC «NPO Mashinostroyenia» (Reutov, Moscow region). E-mail: vpknpomash@mai.ru
V.S. Petrovcky - Ph. D. (Eng.), Main Research Scientist, JSC «MIC «NPO Mashinostroyenia» (Reutov). E-mail: vpknpomash@mail.ru
Nguyen Quang Thuong - Dr. Sc. (Eng.), Senior Research Scientist, Dorodnicyn Computing Centre of RAS. E-mail: tikhonmos@yahoo.com

Two-dimensional direction finding in the presence of radio waves reflection from the earth surface

V. A. Ufaev - Dr.Sc. (Eng.), Senior Research Scientist, Leading Research Scientist of Air Force Academy n.a. Prof. N.E. Zhukovsky and Yu.A. Gagarin (Voronezh)
A. V. Ufaev - Design Engineer, JSC - Concern "Sozvezdie" (Voronezh)

Synthesis of optimum algorithms of trajectory control in the combined guidance system

E. A. Egorov - Post-graduate Student, Military Academy of Army Anti-aircraft Defence named after the Marshal of Soviet Union A.M. Vasilevskij (Smolensk). E-mail: Petrkuks@bk.ru

Radar recognition features control by means of diffraction arrays

V.A. Obukhovets - Dr.Sci. (Eng.), Professor, Southern Federal University

Digital modeling of failure frequency tracking in the Doppler seeker in the case of point target

V.A. Kovrigin - Ph.D. (Eng.), Associate Professor, Department «Autonomous information and operating systems», Bauman Moscow State Technical University. E-mail: kovriginva@yandex.ru I.V. Muratov - Ph.D. (Eng.), Associate Professor, Department «Autonomous information and operating systems», Bauman Moscow State Technical University. E-mail: muratow2007@yandex.ru V.K. Khokhlov - Dr.Sc. (Eng.), Professor, Department «Autonomous information and operating systems», Bauman Moscow State Technical University. E-mail: valerykhokhlov@mail.ru

Ballistic target radar discrimination according to different samples of radar velocity and range measurement

P.Z. Belonogov - Ph. D. (Eng.), Senior Research Scientist, 3 CRI of MoD RF (Moscow). E-mail: belonogov 1945 @ mail. ru E.I. Shustov - Dr. Sc. (Eng.), Professor, General Director RC «REZONANS» A.I. Stuchilin - Ph. D. (Eng.), Deputy General Director RC «REZONANS»

The solution of hypersonic interceptor guidance task in upper atmosphere

A.I. Chepkasov - Post-Graduated Student, JSC «Almaz-Antey». E-mail: chapa-2010@yandex.ru S.V. Staselovich - Post-Graduated Student, JSC «Almaz-Antey». E-mail: stasemv@mail.ru

The synthesis of air target tracking channel on range in the radar silence mode

R.R. Shatovkin - Ph.D. (Eng.), Senior Lecturer, Department of the Battle of Mass Manoeuvring of Aircraft Complexes, Military Educational-Scientific Center of air Forces of the «Military-Air Academy named after Professor N.E. Zhukovsky and Yu. A. Gagarin» (Voronezh). E-mail: Shatovkin@yandex.ru V.P. Lihachov - Dr.Sc. (Eng.), Professor, Department of Combat use of EW (with an Air-Space Management Systems and Leading Arms), Military educational-scientific center of air forces of the «Military-air academy named after professor N.E. Zhukovsky and YU. A. Gagarin» (Voronezh). E-mail: lvp_home@mail.ru

Ground targets locating on basis of the results of two-dimensional direction finding from flight-lifting means

V. A. Ufaev - Dr.Sc. (Eng.), Senior Research Scientist, Air Force Academy n.a. Prof. N.E. Zhukovsky and Yu.A. Gagarin (Voronezh). E-mail: Andreyuff@mail.ru

Radarsandnon-coordinate characteristics of target

G.V. Antsev - Ph.D. (Eng.), General Director - General Designer of JSC «Concern «Agat», JSC «Radar mms» V.A. Sarychev - Dr.Sc. (Eng.) - main scientist member of JSC «Concern «Agat», JSC «Radar mms»

Method of functional synthesis of organizational and technical systems

L.E. Mistrov - Dr. Sc. (Eng.), Associate Professor, Professor, Central branch of Russian University of Justice (Voronezh). E-mail: mistrov_le@mail.ru

The difference detection algorithm in polarimetric SAR

А.N. Detkov - Dr.Sc. (Eng.), Professor, Research Scientist, FGBU «Chief Research and Testing Center robototehnicks» Defense of Russian Federation. E-mail: detkov_an@mail.ru А.V. Nikonenko - Head of Department, FGBU «Chief Research and Testing Center robototehnicks» Defense of Russian Federation. E-mail: nikon-74@mail.ru D.А. Nitsak - Ph.D. (Eng.), Head of Department, VUNTS Air Force «VVA them. Zhukovsky and Yury Gagarin», Voronezh. E-mail: dima_nitsak@mail.ru

Numerical solution of the problem of a crossing point

A.T. Bekishev - Dr. Sc. (Eng.), Professor, General Director, General Designer of JSС «Design Bureau «Ametist» (Moscow). E-mail: kb_ametist@mail.ru Yu.B. Korobochkin - Ph. D. (Eng.), Main Research Scientist, JSС «Design Bureau «Ametist» (Moscow). E-mail: korobotchkin@gmail.com

Information processes in radar channels

About the laser beam focusing on the dynamic distant point target with the use of the modernized doubled frequency method

V.S. Denkevich - Employee, PJSC «NPO Almaz» (Moscow). E-mail: vasilijdenkevich@gmail.com A.N. Kleimenov - Employee, PJSC «NPO Almaz» (Moscow). E-mail: kleimenovandrei@rambler.ru Ya.I. Malashko - Employee, PJSC «NPO Almaz» (Moscow). E-mail: malashko@yandex.ru A.V. Nazarenko - Employee, PJSC «NPO Almaz» (Moscow). E-mail: nazarenko_av_76@mail.ru A.O. Skvortsov - Employee, PJSC «NPO Almaz» (Moscow). E-mail: alexskv@inbox.ru

Filtering of the parameters trajectory of aerodynamic targets with the use of Chebyshev polynomials

L.F. Voskovskaya - Leading System Analyst, OJSC «AGAT-control systems» - Managing Company of the Holding «Geoinformation control systems», Minsk, Republic of Belarus M. L. Grishchenkov - Head of sector, OJSC «AGAT-control systems» - Managing Company of the Holding «Geoinformation control systems», Minsk, Republic of Belarus V.A. Korolenko - Deputy Director of Science, OJSC «AGAT-control systems» - Managing Company of the Holding «Geoinformation control systems», Minsk, Republic of Belarus

Method of functional synthesis of complexes of technical means of information support of organizational and technical systems

L.E. Mistrov - Dr. Sc. (Eng.), Associate Professor, Professor, MESC «Zhukovsky-Gagarin Air Force Academy» (Voronezh). E-mail: mistrov_le@mail.ru V.A. Pavlov - Ph. D. (Eng.), Associate Professor, Professor, MESC «Zhukovsky-Gagarin Air Force Academy» (Voronezh). E-mail: pavlov_viktor@live.ru

Estimation of optimal space-time sampling in problems of tracking of rotating targets, using MDR provision

K.M. Zeide - Employee of Ural Federal University named after the first President of Russia B.N.Yeltsin. E-mail: k.m.zeyde@urfu.ru

Results of flight experimental studies on assessment of comprehensive air target recognition in centimeter band by airborne pulse doppler radar

A.V. Bogdanov - Dr.Sc. (Eng.), Professor, Head of Research Laboratory, Zhukov Air and Space Defense Academy (Tver) О.V. Vasiliev - Dr.Sc. (Eng.), Professor, Chief Designer, JSC «Onboard Aero Navigation Systems» (Moscow) M.I. Kanevskiy - Dr.Sc. (Eng.), Professor, Deputy General Director JSC «Onboard Aero Navigation Systems» (Moscow) S.S. Korotkov - Ph.D. (Eng.), General Director JSC «Russian Aircraft Corporation «MiG» (Moscow) S.Y. Mironovich - Ph.D. (Eng.), Senior Research Scientist, Zhukov Air and Space Defense Academy (Tver) A.A. Kuchin - Ph.D. (Eng.), Doctoral Candidate, Zhukov Air and Space Defense Academy (Tver) A.A. Antsiferov - Adjunct, Zhukov Air and Space Defense Academy (Tver) D.V. Zakomoldin - Adjunct, Zhukov Air and Space Defense Academy (Tver) E-mail: va_vko@mail.ru

Trajectory control method for two-position angle measuring airborne control systems with the withdrawal information support to the best positioning point of radioemmiting target

D.D. Dmitriev - Ph.D. (Eng.), Associate Professor, Bauman Moscow State Technical University I.R. Zagrebelnyi - Post-graduate Student, Bauman Moscow State Technical University; Engineer, JSC «Concern «VEGA» V.I. Merkulov - Dr.Sc. (Eng.), Professor, Deputy General Designer - Head of Department, JSC «Concern «VEGA» E-mail: from_fn@mail.ru V.S. Chernov - Ph.D. (Eng.), Associate Professor, Leading Research Scientist, JSC «Concern «VEGA»

Angular superresolution of multiple targets monopulse radar with a matrix phased array by polynomial method

Yu.B. Korobochkin - Ph. D. (Eng.), Main Research Scientist, JSC «Design Bureau «Ametist» (Moscow) E-mail: kb_ametist@mail.ru, korobotchkin@gmail.com

Evaluation of the influence of visual features of the sighting target on the probability of detection by an optoelectronic device

D.A. Roschin ¹

1 FSBI «3 CNII» of Russia Defense Ministry (Moscow, Russia)

The main patterns and prospects for development aviation aiming and navigation systems

A.M. Krasnov¹

1 ZAO «Technological Park of Cosmonautics «LINKOS» (Moscow, Russia)

Method of radar with continuous radiation of radio beacons

V.A. Ufaev – Dr.Sc.(Eng.), Senior Research Scientist, Leading Research Scientist,

MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh)

E-mail: andreyuff@mail.ru

M.P. Belyaev – Ph.D.(Eng.), Head of Department

MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh)

E-mail: belyaev_mp@mail.ru

Trajectory control method for two-position angle measuring airborne control systems with the withdrawal information support to the best positioning point of radioemmiting target

D.D. Dmitriev – Ph.D. (Eng.), Associate Professor, Bauman Moscow State Technical University

I.R. Zagrebelnyi – Post-graduate Student, Bauman Moscow State Technical University; Engineer, JSC «Concern «VEGA» V.I. Merkulov – Dr.Sc. (Eng.), Professor, Deputy General Designer – Head of Department, JSC «Concern «VEGA» E-mail: from_fn@mail.ru

V.S. Chernov – Ph.D. (Eng.), Associate Professor, Leading Research Scientist, JSC «Concern «VEGA»

Linear variant of realization of the angular-energy method single station passive location in conditions of a priori uncertainty

Yu.G. Bulychev – Dr.Sc. (Eng.), Professor, JSC «All-Russian Research Institute «Gradient» E-mail: profbulychev@yandex.ru

А.А. Mozol’ – Ph.D. (Eng.), Senior Research Scientist, Krasnodar Higher Military School named after General of the Army S.M. Shtemenko E-mail: amozol@bk.ru

Low-loss bidirectional buck-boost DC-DC converter

O.V. Nepomnyashchiy1, I.E. Sazonov2, A.P. Yablonskiy3, V.N. Khaidukova4

1-4 Siberian Federal University (Krasnoyarsk, Russia)

Synthesis and research of filter with a variation of coefficients for tracking a maneuvering aerodynamic target

U.A. Apоrovich

OJSC «AGAT – Control Systems» – Managing Company of «Geoinformation Control Systems Holding» (Minsk, Republic of Belarus)

Intellectually-analytical method of radiating target movement triangulate parameterization involving false measuring channels

Yu.G. Bulychev – Dr.Sc. (Eng.), Professor, JSC «ARSRI «Gradient» (Rostov-on-Don)

E-mail: profbulychev@yandex.ru

Е.N. Chepel’ – Head of the Research Sector, JSC «ARSRI «Gradient» (Rostov-on-Don) E-mail: evgeny_c@bk.ru

Results of semi-natural research of the detecting capability of the grouped concentrated targets in the radar station beam

A.L. Priorov – Dr.Sc. (Eng.), Associate Professor, P.G. Demidov Yaroslavl State University E-mail: andcat@yandex.ru

E.E. Tsubanov – Lecturer, Yaroslavl Higher Military School of Air Defence Е-mail: tzubаnoff.еvgeny@уаndex.ru

Estimation of the elevation angle of the low altitude target: a mathematical model of the signal scattered by the rough surface at sliding propagation angles

A.A. Monakov – Dr.Sc. (Eng.), Professor,

Department «Radio Engineering System»,

Saint-Petersburg State University of Aerospace Instruments

E-mail: a_monakov@mail.ru

N.V. Povarenkin – Ph.D. (Eng.), Associate Professor,

Department «Radio Engineering System»,

Saint-Petersburg State University of Aerospace Instruments

E-mail: povarenkin.nv@guap.ru

Estimation of the elevation angle of a low-flying target: synthesis of an estimation algorithm

A.A. Monakov – Dr.Sc. (Eng.), Professor,

Department «Radio Engineering System»,

Saint-Petersburg State University of Aerospace Instruments

E-mail: a_monakov@mail.ru

N.V. Povarenkin – Ph.D. (Eng.), Associate Professor,

Department «Radio Engineering System»,

Saint-Petersburg State University of Aerospace Instruments

E-mail: povarenkin.nv@guap.ru

Airborne electronic warfare means of destruction of radar systems of the United States. Part 1. Group means of electronic warfare. Anti-radar missiles

G.V. Zaporozhets – Dr.Sc. (Eng.), Professor, Senior Research Scientist,

Chief Research and Testing Centre of Robotics of the Ministry of Defense of the Russian Federation

V.I. Merkulov – Dr.Sc. (Eng.), Professor, Honoured Scientist of the Russian Federation, Deputy Designer General, JSC «Radio Engineering Corporation «VEGA»

E-mail: from_fn@mail.ru

V.S. Chernov – Ph.D. (Eng.), Associate Professor, Leading Research Scientist, JSC «Radio Engineering Corporation «VEGA»

В.С. Верба – чл.-корр. РАН, Засл. деятель науки РФ, д.т.н., профессор,

ген. конструктор - первый зам. ген. директора АО «Концерн радиостроения «Вега» (Москва)

E-mail: vvs.msk@gmail.com

Д.И. Иевлев – инженер,

АО «Концерн радиостроения «Вега» (Москва)

E-mail: idi.96@mail.ru

В.И. Меркулов – Засл. деятель науки РФ, д.т.н., профессор, зам. ген. конструктора,

АО «Концерн радиостроения «Вега» (Москва)

E-mail: from_fn@mail.ru

Recognition method of fixed group objects by radar image based on artificial neural networks

А.V. Kvasnov – Ph.D. (Eng.), Associate Professor,

Peter the Great St.Petersburg Polytechnic University

E-mail: Kvasnov_AV@spbstu.ru

P.Е. Gladilin – Ph.D. (Phys.-Math.), Associate Professor,

ITMO University (St. Petersburg)

E-mail: peter.gladilin@gmail.com

А.E. Pershutkin – Master Student, ITMO University (St. Petersburg)

E-mail: alex.neurocoder@gmail.com

Subsurface signal simulator

Nikolay V. Povarenkin, Andrey A. Monakov, Alexander K. Ermakov

Saint Petersburg State University of Aerospace Instrumentation (SUAI) (St. Petersburg, Russia)

povarenkin.nv@guap.ru, a_monakov@mail.ru, ermakov.alexandr.k@gmail.com

Phased array antennas based on subarrays in the problem of low-altitude targets observation

I.V. Kryuchkov – Head of Department, SRI of Radioelectronic Technics of Bauman Moscow State Technical University E-mail: kryuchkov @bmstu.ru

M.I. Noniashvili – Ph.D.(Eng.), Associate Professor, Department RL-1, Bauman Moscow State Technical University E-mail: min-st-1986 @mail.ru

G.P. Slukin – Dr.Sc.(Eng.), Senior Research Scientist,

Director of SRI of Radioelectronic Technics of Bauman Moscow State Technical University

E-mail: niiret@bmstu.ru

V.V. Chapursky – Dr.Sc.(Eng.), Senior Research Scientist, Main Research Scientist,

SRI of Radioelectronic Technics of Bauman Moscow State Technical University E-mail: valch2008@yandex.ru

Optimal processing of narrowband signal in the presence of Gaussian and non-Gaussian flicker noise

A.Yu. Parshin – Ph.D.(Eng.), Associate Professor, Department «Radio Engineering Devices», Ryazan State Radio Engineering University

E-mail: parshin.a.y@rsreu.ru

Yu.N. Parshin – Dr.Sc.(Eng.), Professor, Head of Department «Radio Engineering Devices», Ryazan State Radio Engineering University

E-mail: parshin.y.n@rsreu.ru

The results of modeling algorithm of the separate measurement the angle coordinates of the objects in focused group target

A.L. Priorov – Dr.Sc.(Eng.), Professor,

P.G. Demidov Yaroslavl State University

E-mail: andcat@yandex.ru

E.E. Tsubanov – Lecturer,

Yaroslavl Higher Military School of Air Defence

Е-mail: tzubаnoff.еvgeny@уаndex.ru

Estimation of characteristics of detection of trajectories of maneuvering targets at secondary processing of radar information

G.S. Nakhmanson – Dr.Sc.(Eng.), Professor,

MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh)

Е-mail: kig28@mail.ru

D.S. Akinshin – Post-graduate Student, Engineer,

MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh) Е-mail: ads199011@icloud.com

Method for intercepting a priority target accompanied by security fighters

V.S. Verba – Corresponding Member of RAS, Honored Scientist of RF, Dr.Sc.(Eng.), Professor, General Product Engineer - First Deputy General Director JSC «Corporation «Vega» (Moscow) E-mail: vvs.msk@gmail.com

D.I. Ievlev – Engineer,

JSC «Corporation «Vega» (Moscow)

E-mail: idi.96@mail.ru

V.I. Merkulov – Honored Scientist of RF, Dr.Sc.(Eng.), Professor, Deputy General Product Engineer, JSC «Corporation «Vega» (Moscow)

E-mail: from_fn@mail.ru

Approaches to variation of the profile of the radiating opening of a diffractive antenna radiation to improve directional characteristics

D.Yu. Kryukov1, A.V. Ostankov2, S.A. Antipov3, K.A. Razinkin4

1-4 Voronezh State Technical University (Voronezh, Russia)

Mathematical model of a radio channel of systems with unmanned aerial vehicles on the basis of neural network approach

D. S. Makhov – Ph.D. (Eng.), Doctoral Candidate, Krasnodar highest military college n.a. General of the Army S.M. Shtemenko

E-mail: sinedvoham@mail.ru

Mathematical model of the thermal imaging seeker of an air-to-air guided missile

S.M. Lazarenkov1, E.D. Shatsky2

1,2 MESC «Zhukovsky–Gagarin Air Force Academy» (Voronezh, Russia)

Influence of noise of photogrammetric system estimation on accuracy of determining parameters of sighting target

D.A. Roshchin1

1 Research and Test Center of Railway Troops of Russia Defense Ministry (Moscow, Russia)

Calculation of the main parameters of the device for re-reflecting signals of the centimeter wave range

V.S. Ivlev1, V.S. Ivlev2

1,2 JSC «Taganrog Research Institute of Communications» (Taganrog, Russia)

Influence of stationary transmitting module position and carrier motion on aperture synthesis process in distributed radar with rotation of receiving antenna phase center

B.G. Tatarsky1, Najjar Tammam2

1,2 Moscow Aviation Institute (National Research University) (Moscow, Russia)

1 RTU MIREA (Moscow, Russia)

1 Science and Education Center of JSC «Corporation «Vega» (Moscow, Russia)

Application of the phase separation algorithm for the production of coherent interference by monopulse radar

E.V. Kalyabin1

1 JSC «Central Radio-Research Institute named after academician A.I. Berg» (Moscow, Russia)

The influence of the diffraction of electromagnetic waves on the characteristics of NRL

N.Yu. Babanov1, V.I. Esipenko2, V.I. Irkhin3

1,2 Nizhny Novgorod State Technical University named after R.E. Alekseev (Nizhny Novgorod, Russia)

3 UTA Protection Group (Moscow, Russia)

Evaluation of sequential algorithms for solving the problem of measuring the angular coordinates of low-flying radar targets

A.K. Ermakov1

1 SUAI (St. Petersburg, Russia)

Structure of a conflict situation involving unmanned aviation systems

G.V. Anzev1, V.A. Sarychev2

1,2 JSC "Scientific and production enterprise" Radar mms "(St. Petersburg, Russia)

Features of the trajectory signal processing in the distributed radar when rotating the joint set of transmitting and receiving antennas

B. G. Tatarsky1, А. V. Arkhipov2
1 Concern Vega JSC (Moscow, Russia)
1, 2 Moscow Aviation Institute (National Research University) (Moscow, Russia)
1 MIREA – Russian Technological University (Moscow, Russia)

High-potential directional spot jammers operating from loitering zones during group protection of aircraft

A.O. Polyakov1, I.V. Smirnov2, M.A. Kuzin3, A.M. Filatov4

1-4 JSC “CNIRTI named after academician A.I. Berg” (Moscow, Russia)

Bundling of meters with different periods arrival of input data

A.V. Korennoj1, E.A. Bogoslovskiy2, M. K. Almahmud3

1–3 Air Force Academy n.a. Professor N.E. Zhukovsky and Yu.A. Gagarin (Voronezh, Russia)
1 korennoj@mail.ru, 2 qro76@yandex.ru, 3 malmahmud04@gmail.com

Influence of parameter measurement errors on the three-dimensional radar image forming in a distributed radar consisting of a rotating receiving and stationary transmit-receive modules

B. G. Tatarsky1, Najjar Tammam2
1 JSC «Concern «Vega» (Moscow, Russia)
1, 2 Moscow Aviation Institute (National Research University) (Moscow, Russia)

1 info@radiotec.ru