Title :
Dual nonlinear diversity combining receiver for fast frequency hopped systems to combat partial-band noise jammer
Author :
Xiao, Limin ; Lu, Jianhua ; Yao, Yan
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Error probability analyses are performed for a BFSK system employing L hops/bit frequency-hopped spread-spectrum waveforms transmitted over a partial-band Gaussian noise jamming channel. A novel diversity combining receiver called DNDCR (dual nonliner diversity combining receiver) is presented in this paper. In DNDCR, the envelope detector sample for each dehopped signal is to be weighted by the inverse noise powers and then weighted by a soft-limiter prior to being accumulated in the combiner. The performance comparison under a worst-case partial noise jammer among different diversity combining technologies is given. It shown that a diversity gain for error rate improvement is realizable for dual nonlinear combining receivers.
Keywords :
Gaussian noise; diversity reception; error statistics; frequency hop communication; interference suppression; jamming; phase shift keying; radio receivers; spread spectrum communication; BFSK system; DNDCR; dehopped signal; diversity gain; dual nonlinear diversity combining receiver; envelope detector sample; error probability analyses; error rate improvement; fast frequency hopped systems; inverse noise powers; partial-band Gaussian noise jamming channel; partial-band noise jammer; performance; soft-limiter; spread-spectrum waveforms; worst-case partial noise jammer; Diversity methods; Diversity reception; Envelope detectors; Error analysis; Error probability; Frequency diversity; Gaussian noise; Jamming; Performance analysis; Spread spectrum communication;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.825013