Title :
An enhanced prediction error filter design for hopped direct sequence spread spectrum (DSSS) receivers
Author :
Webster, Mark ; Furman, William
Author_Institution :
Harris Corp., Melbourne, FL, USA
Abstract :
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
Keywords :
filtering and prediction theory; frequency agility; interference suppression; radio receivers; spread spectrum communication; Levinson Durbin algorithm; PEF weight normalization; frequency hopped direct sequence spread spectrum receiver; narrowband interference rejection; prediction error filter design; unbiased autocorrelation estimation; Adaptive filters; Autocorrelation; Filtering; Finite impulse response filter; Frequency; Interference; Linear discriminant analysis; Narrowband; Signal processing; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 1991. MILCOM '91, Conference Record, Military Communications in a Changing World., IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-87942-691-8
DOI :
10.1109/MILCOM.1991.258276
