Performance and Implementation of RS Coding Combined with Diversity for FH/MFSK Systems Against Worst-Case Partial-Band Noise or Multiple-Tone Jamming

摘要

In this paper,on the basts of analyzing the performance of RS coding with or without diversity for frequency-hop communication systems under worst-case partial-band noise or multiple-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 byusing Winograd FFT the decoder can be real time implemented on a microcomputer at a transmission raie of 38.4 kb/s.