半导体光电, 2011, 32 (3): 401, 网络出版: 2012-01-04
星地光通信交织RS码设计及性能研究
Design of Interleaved RS Code of Satellitetoground Optical Communication System
星地光通信 突发错误 比特交织 RS码 satellitetoground optical communication bursterrors bit interleaving RS code
摘要
复杂多变的大气环境极易造成星地光链路的突发错误,交织RS码超强的抗突发能力能有效地纠正信息序列中的突发错误。文章综合考虑时延、交织深度、编码效率三个参数,对交织RS码进行优化设计,计算了固定交织深度下的最佳编码效率,仿真表明:交织RS码在衰落信道中能明显地提高通信系统的性能,当编码效率为1/2时,具有最大的抗突发能力。
Abstract
Complex and volatile atmospheric environment usually results in large bursterrors of satellitetoground optical link, but the powerful interleaved RS code can correct the bursterrors in the message sequence effectively. In this paper, by optimizing the interleaved RS code and considering three parameters of delay, interleaving length and coding efficiency comprehensively, the optimum coding efficiency at the fixed interleaving length is calculated. The simulation results show that the interleaved RS code can obviously improve the performance of communication system in the fading channel, and the most powerful capability of correcting bursterrors is obtained at the coding efficiency of 1/2.
姜晓峰, 赵尚弘, 李勇军, 盖美庆, 王翔. 星地光通信交织RS码设计及性能研究[J]. 半导体光电, 2011, 32(3): 401. JIANG Xiaofeng, ZHAO Shanghong, LI Yongjun, GAI Meiqing, WANG Xiang. Design of Interleaved RS Code of Satellitetoground Optical Communication System[J]. Semiconductor Optoelectronics, 2011, 32(3): 401.