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Математическая модель когерентной демодуляции синхронных взаимно неортогональных цифровых сигналов с минимальной частотной манипуляцией

Математическая модель когерентной демодуляции синхронных взаимно неортогональных цифровых сигналов с минимальной частотной манипуляцией

Abstract

Introduction. The synthesis mathematical model procedure of coherent demodulation of synchronous mutually nonorthogonal digital signals with minimum frequency-shift keying is the basic and purpose of this article. Synthesis method of mathematical model coherent demodulation of synchronous mutually nonorthogonal digital signals with minimum frequency-shift keying. Coherent demodulations of powerful signal interference with minimum frequency-shift keying and useful digital signal with minimum frequency-shift keying in a channel with additive white noise are showed. In absence of signal interference this procedure degenerates in classic coherent demodulation of digital signal with minimum frequency-shift keying. When the power of signal interference is much greater power of the useful digital signal with a minimum frequency-shift keying the interference protection receiving in the channel with additive white noise there is such when a signal interference missing. Conclusions. This mathematical model procedure can be used in modem compensators for realization of the repeated use of frequency resource and in development of perspective protection from signal interference of radio contact facilities.

В статье представлен синтез математической модели компенсационной процедуры когерентной демодуляции синхронных взаимно неортогональных ЦС с МЧМ. При отсутствии помехи данная процедура вырождается в процедуру классической когерентной демодуляции ЦС с МЧМ. При существенном превышении мгновенной мощности помехи над мгновенной мощностью полезного ЦС с МЧМ помехозащищенность приема последнего приближается к помехозащищенности приема в канале с аддитивным белым гауссовским шумом без помехи. Данная математическая модель может быть использована при разработке модемных компенсаторов, обеспечивающих повторное использование частотного ресурса, а также при разработке перспективных помехозащищенных средств радиосвязи.

Keywords

РАДіОЗВ'ЯЗОК,КОГЕРЕНТНА ДЕМОДУЛЯЦіЯ,СИНХРОННі НЕОРТОГОНАЛЬНі ЦИФРОВі СИГНАЛИ,МіНіМАЛЬНА ЧАСТОТНА МАНіПУЛЯЦіЯ,РАДИОСВЯЗЬ,КОГЕРЕНТНАЯ ДЕМОДУЛЯЦИЯ,СИНХРОННЫЕ НЕОРТОГОНАЛЬНЫЕ ЦИФРОВЫЕ СИГНАЛЫ,МИНИМАЛЬНАЯ ЧАСТОТНАЯ МАНИПУЛЯЦИЯ,RADIO CONTACT,COHERENT DEMODULATION,SYNCHRONOUS NONORTHOGONAL DIGITAL SIGNALS,MINIMUM FREQUENCY-SHIFT KEYING

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selected citations
These citations are derived from selected sources.
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!
0
Average
Average
Average