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Повышение достоверности приема Ñ†Ð¸Ñ„Ñ€Ð¾Ð²Ñ‹Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² за счет использования Ð¸Ñ Ð²ÐµÑ€Ð¾ÑÑ‚Ð½Ð¾ÑÑ‚Ð½Ñ‹Ñ Ñ Ð°Ñ€Ð°ÐºÑ‚ÐµÑ€Ð¸ÑÑ‚Ð¸Ðº

магистерская диссертация

Повышение достоверности приема Ñ†Ð¸Ñ„Ñ€Ð¾Ð²Ñ‹Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² за счет использования Ð¸Ñ Ð²ÐµÑ€Ð¾ÑÑ‚Ð½Ð¾ÑÑ‚Ð½Ñ‹Ñ Ñ Ð°Ñ€Ð°ÐºÑ‚ÐµÑ€Ð¸ÑÑ‚Ð¸Ðº

Abstract

Ð’ работе исследуется алгоритм корректировки уровня цифрового сигнала, полученного квантованием реализации случайного процесса. Алгоритм корректировки уровня использует априорные оценки вероятностей Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð° сигнала из одного уровня в другой и вероятности ошибочного приема бита. Исследовано влияние неточности оценки вероятности ошибочного приема бита на достоверность корректировки уровня. Работа состоит из Ñ‚Ñ€ÐµÑ Ñ€Ð°Ð·Ð´ÐµÐ»Ð¾Ð². Ð’ разделе 1 проводится реализации имитационную модель получения реализаций гауссова случайного процесса с экспоненциальной автокорреляционной функцией, его квантования, двоичного кодирования, двоичной фазовой модуляции, демодуляции и декодирования. Ð’ разделе 2 проводится реализации алгоритм корректировки уровня цифрового сигнала, Ð¸ÑÑ Ð¾Ð´Ñ из знания вероятностей Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð° сигнала из одного уровня в другой и вероятности ошибочного приема бита. Ð’ разделе 3 исследуется влияние точности знания вероятности ошибочного приема бита на эффективность алгоритма корректировки уровня сигнала.

This paper studies the algorithm of the adjustment level of the digital signal obtained by a quantization of the realization of a random process. The algorithm of adjusting the level uses a priori estimates of the probabilities of transition from one signal level to another and the probability of erroneous reception of bits. The influence of the inaccuracies of estimating the probability of erroneous reception of bits on the reliability level increases. The work consists of three sections. In section 1 is the implementation of a simulation model of obtaining realizations of a Gaussian random process with exponential autocorrelation function, its quantization, binary coding, binary phase modulation, demodulation and decoding. In section 2 is the implementation of the algorithm was to adjust the level of the digital signal, based on the knowledge of the probabilities of transition from one signal level to another and the probability of erroneous reception of bits. In section 3 we study the influence of accuracy of the knowledge of the probability of erroneous reception of bits on the efficiency of the algorithm for adjusting the signal level.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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