短波信道时延对FH/MFSK系统抗单音干扰的影响

ABOUT EFFECT OF TIME DLEAY ON FH/MFSK SYSTEM PREFORMANCE RESISTANT TO THE TONE JAMMING IN SHORT-WAVE CHANNEL

本文旨在对 GORDON 提出的分集与编码相结合的 FH/MFSK 通信系统模型进行了分析、研究,并考虑了反馈链路时延τ在单音干扰的短波信道中,对抗单音干扰影响的系统性能.研究结果表明,在可用的误码率范围内,时延因子(Bd*τ)必须小于0.05时,该系统模型对短波信道才是适用的.

In this paper,the FH/MFSK comnurnicetion system model with diversity and coding purposed by Gordon is analysed and studied.Considering the effect of time delay τ of feedback link in tone-jamning short-wave channel on the system performance resistant to tone jamming.The researched results that the given system model is useful for short-wave communications when the time delay factor Bd *τ must be less then 0.05 in the range of error Probability available.