The modified capon approach in the task of binary FSK-signals demodulation

This paper presents an algorithm of digital filtration based on the modified Capon approach. An algorithm is used in the task of FSK-signals demodulation. The filter coefficients correspond to an information-optimal solution to the problem of minimizing the output linear filter dispersion. It is shown that the method is efficient in the conditions of additive noises and inexact knowledge of the central signal frequency spectrum. Proposed algorithm can be efficiently realized on the base of programmable logic for work in a real-time rate.