Применение полиспектральной обработки в адаптивной фильтрации

Abstract

В статье рассмотрено полиспектральное преобразование, в частности биспектр, а также адаптивная фильтрация сигналов и использование биспектров в данной области. Разработана модель адаптивного компенсатора в биспектральной области с последующим исследованием влияния некоррелированных гауссовых помех в каналах.

The polyspectral estimation, in particular, the bispectrum, is considered. Adaptive filtering of signals and the use of bispectra in this area are also considered. The model of the adaptive compensator in the bispectral range was developed with subsequent investigation of the effect of uncorrelated Gaussian noise in the channels. As a result, it was found that in the presence of uncorrelated Gaussian noise in the channels of the adaptive compensator, the system using the bispectral processing shows better results than the compensator in the spectral region without using a bispectrum. The difference is about 14 dB. It was also noted that for the compensator with the bispectral processing the third-order cumulant of the signal should be non-zero.