Theoretical Proposals for Improving the Noise Immunity of Receiving Multi-Position Signals in Channels with Variable Parameters

Дворников, С. С.; Pshenichnikov, A. V.; Kryachko, A. F.; Bibarsov, M. R.; Bibarsova, G. Sh.

doi:10.32603/1993-8985-2023-26-2-6-15

Cited by 2 publications

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“…Структурная схема устройства приема квадратурных амплитудных сигналов в каналах со случайным изменением фазы. В [8] представлены трансформированные модели сигнала 16-КАМ (рис. 1, 2) и получены аналитическая и графическая зависимости вероятности парной ошибки от ОСШ для этих моделей, в том числе с учетом фазовых искажений (рис.…”

Section: разработать алгоритм функционирования амплитудно-фазового де...unclassified

“…For citation: Bibarsov M. R., Dvornikov S. V., Kryachko A. F., Pshenichnikov A. V. Scientific Введение. Исследование свойств многопозиционных сигналов в каналах с переменными параметрами, которые находят широкое применение в различных радиотехнических системах, отражено во многих научных работах [1][2][3][4][5][6][7][8][9][10][11][12][13]. В частности, сигнальные конструкции (СК) многопозиционной квадратурной амплитудной модуляции (М-КАМ) представляют собой сумму двух несущих колебаний одной частоты, фазы которых отличаются на 90°.…”

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Scientific and Engineering Proposals for Improving the Noise Immunity of Receiving Multi-Position Signals in Channels with Variable Parameters

Bibarsov,

Dvornikov,

Kryachko

et al. 2023

Izv. vysš. učebn. zaved. Ross., Radioèlektron.

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Introduction. An important task faced by the developers of modern telecommunication systems consists in increasing the noise immunity of signal reception in channels with variable parameters. Thus, the communication lines of DVB-T2, DVB-S, and DVB-S2/S2 standards widely apply signal structures (SS) of multi-position quadrature amplitude modulation (M-QAM). However, an analysis of scientific publications shows that the random nature of the phase change of the transformed signal constellation leads to a loss of noise immunity of the M-QAM signals. Engineering solutions for the effective reception of such signals are lacking. The proposed block diagram of a device for receiving quadrature amplitude signals and the developed operation algorithm for an amplitude-phase detector allow random phase changes to be considered and reduced.Aim. Development of scientific and engineering proposals to improve the efficiency of receiving M-QAM signals in radio channels with random phase changes.Materials and methods. The study was conducted using the methods of noise immunity research, as well as communication theory and signal theory.Results. A block diagram of a device for receiving quadrature amplitude signals and an operation algorithm for an amplitude-phase detector were proposed, which allow random phase changes to be considered and compensated for. Scientific and engineering proposals were formulated to improve the noise immunity of M-QAM reception in channels with variable parameters.Conclusion. The developed scientific and engineering proposals for increasing the noise immunity of multi-position quadrature signals in channels with variable parameters substantiate both the feasibility of using a transformed SS M-QAM with improved energy characteristics, as well as the application of the developed receiving device for processing quadrature amplitude signals and the operation algorithm of an amplitude-phase detector. The results obtained make it possible to perform demodulation with simultaneous compensation of phase distortions to increase the noise immunity of M-QAM signal reception.

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Section: разработать алгоритм функционирования амплитудно-фазового де...unclassified

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Scientific and Engineering Proposals for Improving the Noise Immunity of Receiving Multi-Position Signals in Channels with Variable Parameters

Bibarsov,

Dvornikov,

Kryachko

et al. 2023

Izv. vysš. učebn. zaved. Ross., Radioèlektron.

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Improving Noise Immunity of Receiving Video Data From Small Unmanned Aerial Vehicles

Kharina,

Rzhanikova

2024

2024 26th International Conference on Digital Signal Processing and Its Applications (DSPA)

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Theoretical Proposals for Improving the Noise Immunity of Receiving Multi-Position Signals in Channels with Variable Parameters

Cited by 2 publications

References 4 publications

Scientific and Engineering Proposals for Improving the Noise Immunity of Receiving Multi-Position Signals in Channels with Variable Parameters

Scientific and Engineering Proposals for Improving the Noise Immunity of Receiving Multi-Position Signals in Channels with Variable Parameters

Improving Noise Immunity of Receiving Video Data From Small Unmanned Aerial Vehicles

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