Лихоеденко К.П., Хохлов В.К. «Дискриминационные характеристики акустических пеленгаторов локализованных источников широкополосных излучений с временным способом обработки сигналов» Электромагнитные волны и электронные системы, 19, № 6, с. 47-53 (2014)

Рассмотрен временной способ обработки случайных широкополосных сигналов от локализованных источников излучений в каналах двухканального акустического пеленгатора применительно к условиям ближней локации. Обоснована математическая модель сигналов от локализованного источника. Получены математические выражения для дискриминационной характеристики квазиоптимального дискриминатора в функции от параметров сигналов и базы пеленгатора. Исследованы зоны однозначности дискриминационных характеристик. The discrimination characteristics for seeking of objects on a corner in acoustic direction finders of the localized sources of broadband radiations are investigated. On the basis of representations of casual signals in direction finder channels initial decomposition in a complex form the dependences for mutually correlation functions of inphase and quadrature components of signals in channels are received. For estimates of discrimination characteristics of direction finders of local radiators in the distributed hindrances calculations of the mutual stochastic characteristics of signals at the exits of reception antennas are carried out to functions from a corner of a bearing of object at various relations of base of a direction finder to the average length of a wave of radiation of a source. At calculations of dispersions of signals on inputs of antennas function of an orientation of reception antennas was assumed by the Gaussian. The model of a hindrance was presented by the local radiators which distributed in the horizontal plane. The object was represented by the local radiator located in the same plane, as a hindrance. Spectrum of radiation of object and a hindrance are coincide an also Gaussian. Discrimination characteristics of a two-channel acoustic direction finder with temporary processing of signals and unambiguity zones of the discrimination characteristics are investigated. The considered time correlation method of formation of the discrimination characteristic of a direction finder allows to carry out scanning by the main maximum of the directional pattern and tracking object by introduction of temporary delays of signals in channels.