Frequency-hopping communication was combined with the Low-Density Parity-Check (LDPC) code to improve anti-jamming performance of frequency hopping communications.By simplifying the complexity of coding algorithm in the “greedy algorithm”, an offset layered quantization decoding called Layered Belief Propagation-Offset Min-Sum (LBP-OMS)algorithm was applied to improve the performance of error correction code words.The simulation results show that when certain frequency bands are covered by strong noise, the anti-interference ability of broadband frequency-hopping communications is improved by using the improved channel coding method.%为了提高跳频通信的抗干扰性能,将低密度奇偶校验(LDPC)码与跳频通信相结合.通过对编码算法中的"贪婪算法"的复杂度简化和带偏移量的分层量化译码(LBP-OMS)算法的应用,提高了码字的纠错性能.实验表明,当某些频带受强噪声干扰时,改进后的信道编译码方法提高了跳频通信的抗干扰能力.
展开▼
