Исследование компенсационного метода подавления помех в акустическом локаторе

Abstract

The possibility of acoustic noise compensatіщт arriving along the side lobes of the sodar receiving antenna is investigated. The adaptation system adjusts the linear noise filter coefficients to attenuate the noise components at the output of the subtractor. Used LMS-adaptive filtering algorithm (Least Mean Square). The filter is presented in the form of two quadrature channels, which makes it possible to compensate for the amplitude and phase of interference. The attenuation level was 25 dB at 1.2 kHz