Noncoherent DPSK hybrid DS/SFH spread spectrum system over rayleigh fading channel in the presence of multiple tone jamming

다중 톤 방해신호가 존재하는 레일레이 페이딩 전송로에서 비동기 DPSK DS/SFH 복합 확산대역 시스템의 성능분석

In this paper, the performance of a hybrid direct-sequence/slow-frequency-hoped (DS/SFH) spread-spectrum (SS) system with noncoherent DPSK modulation is considered. Th ebit error probability is derived ovef a rayleigh fading channel in the presence of multiple tone jamming. Numerical evaluations are presented for some combinations of system parameters. The performance of a hybrid DS/SFH SS system is shown to be inferior to that of a pure DS SS system at low jamming-to-signal power ratio (JSR). At high JSR, the performance of a pure DS SS system is shown to be the same as the worst case peformance of a hybrid DS/SFH SS system.