摘要
在采用单一跳频通信方式时,部分频带噪声干扰会引起性能的极大恶化,而DS-FH混合扩频通信体制可有效地降低部分频带干扰对系统性能的影响,文中提出一种基于DDS(DirectDigitalSynthesizer)与FPGA技术的DS-FH混合扩频信号源的实现方案,并分析该信号源在部分频带干扰环境下的抗干扰性能。
The performance is affected by partial band nose jamming.The hybrid DS-FH system is proposed to resolve this problem.So a DS-FH Hybrid spread spectrum transmitter based on DDS and FPGA technology is introduced.This paper also analysis the performance of hybrid DS-FH BPSK system in the presence of partial band noise jamming.
出处
《遥测遥控》
2005年第3期59-62,67,共5页
Journal of Telemetry,Tracking and Command
关键词
直接数字频率合成器
混合扩频(DS-FH)
跳频
部分频带干扰
Subject terms Hybrid spread spectrum Frequency hopping Partial band nose jamming Digital direct synthesizer
