An enhanced prediction error filter design for hopped direct sequence spread spectrum (DSSS) receivers

Prediction error filter (PEF) design for narrowband interference (NBI) excision is examined for a hopped direct-sequence spread-spectrum system. The PEF is obtained by application of the Levinson Durbin algorithm (LDA). Several enhancements are utilized: unbiased autocorrelation estimation and normalization. LDA modification, and PEF weight normalization. The resulting composite technique provides a high-performance excision algorithm.<
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