The adaptive filtering algorithm for signals with high resolution on frequency in receiving modulated signals with a phase modulation and estimation of its reso-lution capability
The article considers the issue of increasing frequency selectivity in received signals with binary phase modulation for estimating the amount of received signals and allo-cating weak signals on a background local (on frequency) noise Thus, the specific features of receiving phase-shift keyed signals shown was taken into account. The planar wave model for given signals is applied only for short sam-ples of input process. During these samples a uniform phasing constant of transmitted messages is observed for each received signal. The suggested adaptive filtration algorithm is based on processing eigenvalues and eigenvectors of correlation matrix of input signals and noise mixture. It allows solv-ing specified tasks on short time intervals. The results of imitating simulation analysis are given. It allows comparing quality of received signals filtered with proposed adaptive algorithm to signals filtered with tra-ditional algorithm, based on Fourier transformation for various volumes of training sample.