Algorithm of Nonlinear Quasioptimal Digital Processing of Angle-Modulated Signals
The paper considers an algorithm for nonlinear quasioptimal digital processing of signals with various types of angle modulation based on a generalization of the Capon minimum variance approach. The algorithm makes it unnecessary to compensate for the unknown frequency shift in the problem of determining the relative time delay of signals during multichannel propagation. Efficiency of the proposed method is demonstrated on phase- and frequency-shifted keyed signals which represent short information sequences.