Rejection of FH signal in DS spread spectrum systems using complex adaptive filters

The performance of direct sequence (DS) quadrature phase-shift keyed (QPSK) spread spectrum receiver using adaptive filters in the presence of frequency-hopped (FH) interference is analyzed. The analysis includes both the adaptive error prediction filters and the adaptive transversal filters with two-sided taps. The system model and the tap weights for adaptive filters are discussed. Conclusions are made from the numerical results.<
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