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Фотоэлектрический датчик диффузного типа на основе генератора хаоса

Фотоэлектрический датчик диффузного типа на основе генератора хаоса

Abstract

В статье рассматривается пример использования генератора хаотических колебаний в качестве обнаружителя слабых периодических сигналов на фоне преобладающих шумов. Предлагается полученный сигнал, содержащий шум, и полезный сигнал подавать в неавтономный генератор хаоса. Изначально параметры генератора хаоса должны быть подобраны таким образом, чтобы обеспечить близость рабочей точки к границе периодического и хаотического режимов. Рекомендовано в качестве границы режимов использовать касательную бифуркацию, при которой возникновение хаоса происходит через перемежаемость. По установившемуся виду движения в системе (хаотическому или периодическому) можно судить о факте обнаружения сигнала. Распознавание вида движения в хаотическом генераторе осуществляется по виду спектра сигнала на его выходе. Авторами получены параметры бифуркационных границ и количественно исследована способность к обнаружению сигналов на фоне шумов. Предложенный способ апробирован на лабораторном макете фотоэлектрического датчика диффузного типа.

The article describes an example of the use of the generator of chaotic oscillations as a detector of weak periodic signals on the background of strong noise. It is proposed the received signal containing the noise and the desired signal fed to the non-autonomous chaotic oscillator. Initially, the chaotic oscillator parameters should be chosen so as to ensure the proximity of the working point to the boundary of the chaotic and periodic modes. Recommended as a border regimes to use a tangent bifurcation in which the occurrence of chaos is via intermittency. According to the established form of motion in the (periodic or chaotic) can be seen on the detection signal. Recognition kind of movement in the chaotic oscillator is in appearance of the signal at its output. The authors have obtained the parameters of the bifurcation boundaries and quantitatively tested for their ability to detect signals from the background noise. The proposed method has been tested on a laboratory layout photoelectric sensor.

Keywords

ФОТОЭЛЕКТРИЧЕСКИЙ ДАТЧИК, ГЕНЕРАТОР ХАОСА, ШУМ, БИФУРКАЦИИ, ПЕРЕМЕЖАЕМОСТЬ, ОБНАРУЖИТЕЛЬ СЛАБЫХ СИГНАЛОВ

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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
gold