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Підвищення завадостійкості обробки сигналів в некогерентних радіолокаційних системах

Підвищення завадостійкості обробки сигналів в некогерентних радіолокаційних системах

Abstract

Introduction. The work is devoted to the method of increasing coherence and noise im-munity pulse radar systems with incoherent sources probing signals. Problem. Incongruities between a resolution and a range of pulsed radar systems can not be resolved within the classical approaches of building incoherent radar systems, requir-ing new approaches in their construction. The main part. The paper presents a method of two-stage processing incoherent pulsed radar signals, allowing to compensate and to use the information available to them and the angular amplitude of spurious modulation. Conclusions. Simulation results and research functions of these expressions of uncer-tainty indicate that use volatility as an additional transmitter modulation allows to improve significantly the resolution and robustness of the radar system.

В работе пред-ложен новый подход в построении приемопередатчиков активных радиолокационных систем, предусматривающий использование паразитной модуляции радиолокационных сигналов для повышения когерентности и помехоустойчивости их обработки, за счет двухэтапной обработки. Проведена аналитическая оценка потенциального выигрыша в разрешении импульсных радиолокационных систем с использованием данного мето-да. Приведены результаты моделирования и исследования полученных выражений функций неопределенности, которые свидетельствуют, что использование неста-бильности передатчика в качестве дополнительной модуляции позволяет значительно улучшить разрешение и помехоустойчивость радиолокационной системы.

Keywords

радіолокація, сигнал, когерентність, завадостійкість, узгоджений фільтр, приймач, надвисока частота, нестабільність, радиолокация, сигнал, когерентность, помехоустойчивость, со-гласованный фильтр, приемник, сверхвысокая частота, нестабильность

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    influence
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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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