Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Sadchenko A. V."'
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 1-2, Pp 8-14 (2020)
Pulsed laser rangefinders prove to be cost-effective and practical devices when used at distances of several tens of kilometers due to their compactness, portability and energy efficiency. However, the measurement accuracy is significantly reduced by
Externí odkaz:
https://doaj.org/article/fd1bc8a5cf4f422584d7d04d1f296b65
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 1-2, Pp 15-21 (2020)
The paper considers typical designs of surveillance devices for acousto-optic leakage channels. To assess the quality of the channel, it is proposed to use the criterion of the minimum permissible power of the information signal at the input. To ana
Externí odkaz:
https://doaj.org/article/5e1e1f7fbe17429c97a45556cd02efd8
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 5-6, Pp 17-23 (2018)
Increase of the operation reliability of the frame synchronization schemes of communication systems affected by interferences might be achieved by using sync sequences optimal according to the minimax criterion and having the best ratio of the maximu
Externí odkaz:
https://doaj.org/article/40fc7c53c4cd4d69a8cc73122284d295
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 1, Pp 28-35 (2018)
When demodulating signals in communication systems with QPSK modulation operating in the pulsed mode, the following problems arise: rapid elimination of the reference oscillator phase ambiguity and ensuring reliable frame synchronization for a given
Externí odkaz:
https://doaj.org/article/29904140edd64cbbbd5583f422d2d9e9
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 6, Pp 22-29 (2017)
The information efficiency of communication systems using quadrature amplitude modulation is reduced because of the costs for data transmission necessary to provide frame synchronization and the required time to search for the sync signal and to go i
Externí odkaz:
https://doaj.org/article/990ee09cc3864d5bbbc53bb4c198f6bf
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 3, Pp 19-23 (2017)
The authors have developed a device for imitation of the signal-interference environment for radars, equipped with the plan-position indicator (PPI) «Picket», which does not require a PC for operation. Thanks to the use of the original method of fo
Externí odkaz:
https://doaj.org/article/7ff711b1b3a141a8b27e6326c261e8c4
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 6, Pp 40-45 (2016)
The quality of wireless network depends essentially on the directional characteristics of the antennas, the most important of which are the amplitude radiation pattern (RP) and the frequency response (FR), which is understood as a change of the gain
Externí odkaz:
https://doaj.org/article/c0ac4d5c8cc74c228abf8445d6021485
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 1, Pp 8-11 (2016)
Directivity pattern (DP) or graphical representation of the dependence of gain factor (directivity gain) of antennas on the direction of the antenna in the target plane is the main characteristic that describes its directional properties. Running DP
Externí odkaz:
https://doaj.org/article/d588d668d52f4367a94098ef12e88186
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 6, Pp 15-18 (2015)
Ahe problem of technical implementation of phased array antennas (PAR) with the required radiation pattern (RP) is the complexity of the construction of the beamforming device that consists of a set of controlled attenuators and phase shifters. It is
Externí odkaz:
https://doaj.org/article/293afe16cb614447bdb6ac4f618f5255
Publikováno v:
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 4-6, Pp 17-24 (2022)
ATmega series AVR microcontrollers (e.g., ATmega8A or ATmega16A) and ARM microcontrollers with a Cortex M3 core (e.g., STM32F103С8T6) are among the most popular controllers used in solving engineering problems related to servicing various fire and s
Externí odkaz:
https://doaj.org/article/50e0470bc0dc4bbaaf921ffa130d5480