摘要
分析了跳频通信在最恶劣情况下的部分频带（噪声或多音）于扰下采用ＲＳ码，或ＲＳ码与分集相结合时的性能，在此基础上提出一种简单实用的抗干扰编码方案；着重讨论了方案的设计及高速而又低复杂度地实时实现方案的途径。结果表明，与无编码无分集的２ＦＳＫ跳频系统相比，（６３，２１）ＲＳ码与分集相结合可获得约４０ｄＢ的编码增益，在微机上用ＷｉｎｏｇｒａｄＦＦＴ实现译码器，实时传输速度可达３８．４ｋｂ／Ｓ．
In this paper,on the basis of analyzing the perfomance of RS coding with or without diversity for frequency-hop communication systems under worst-case partial-band noise or muttple-tone jamming conditions and comparing with various coding schemes, a simple and practical coding scheme effective against jamming is presented. The emphasis is given to the design and implementation consideration of the scheme with high speed and low complexity for real time application.It is shown that compared with 2FSK signaling without coding and diversity,(63,21)RS coding with diversity can provide a coding gain of about 40 dB and by using Winograd FFT the decoder can be real time Implemented on a microcomputer at a transmission rate of 38.4 kb/s.
出处
《桂林电子工业学院学报》
1995年第1期1-9,共9页
Journal of Guilin Institute of Electronic Technology
关键词
RS码
跳频通信
频带干扰
编码
RS code
Deversity
FH communication
partial-band jamming
