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

Author

Glisic, Savo ; Pajkovic, Miodrag

Author_Institution

Inst. of Electr. Eng., VTI, Belgrade, Yugoslavia

fYear

1990

fDate

30 Sep-3 Oct 1990

Firstpage

349

Abstract

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

Keywords

adaptive filters; digital filters; frequency agility; interference suppression; phase shift keying; radio receivers; radiofrequency interference; spread spectrum communication; DS spread spectrum systems; FH signal rejection; QPSK; adaptive error prediction filters; adaptive transversal filters; direct sequence spread spectrum; frequency hopped interference; numerical analysis; quadrature phase-shift keyed; spread spectrum receiver; system model; tap weights; two-sided taps; Adaptive filters; Frequency; Interference; Jamming; Narrowband; Performance analysis; Quadrature phase shift keying; Signal analysis; Spread spectrum communication; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE

Conference_Location

Monterey, CA

Type

conf

DOI

10.1109/MILCOM.1990.117440

Filename

117440