Antijam capability analysis of RS-coded slow frequency-hopped systems

The application of Reed-Solomon codes in slow frequency-hopped systems has been extensively studied. Earlier investigations assumed an infinite interl eaving length and considered partial-band noise jammers only. This paper ex tends previous efforts by analyzing the effect of finite interleaving lengt h and the impact of band multitone jammers, We also explain why two-thresho ld (2T) erasure-insertion methods (EIM) are needed and examine their perfor mance, Numerical results are presented to compare the effectiveness of EIM' s and jammer types and to stud!, the relationships among the hop rate, the interleaver size, and the code rate, The use of 2T EIM's necessitates the e stimation of several additional channel and signal parameters, Simple and e ffective estimation algorithms are provided as well.