现代电子技术2017，Vol.40Issue(5)：10-13,4.DOI:10.16652/j.issn.1004-373x.2017.05.003
基于LDPC码的超短波高速数传系统性能研究
Performance study on VHF high-speed data transmission system based on LDPC code
摘要
Abstract
In order to satisfy the performance requirement of the VHF high-speed data transmission system,the sending se-quence is coded with LDPC,and the modified min-sum(MMS)decoding algorithm is selected for decoding. The adaptive equa-lization technique is used to eliminate the multipath interference,and divide the receiver into the DFE equalizer and LDPC de-coder. On the basis of Matlab simulation platform,the simulation model of the VHF high-speed data transmission system was constructed,and the transmission performance of the typical VHF channel model is simulated and analyzed. The simulation re-sults show that the quasi-cyclic LDPC code with the medium and high code rate can obtain better coding gain,and the VHF high-speed data transmission system based on LDPC code has good high-speed data transmission performance and good engineering application prospect.关键词
超短波/高速数传/LDPC码/修正最小和算法/自适应均衡Key words
VHF wave/high-speed data transmission/LDPC code/MMS algorithm/adaptive equalization分类
信息技术与安全科学引用本文复制引用
马雯,李冬,肖启荣..基于LDPC码的超短波高速数传系统性能研究[J].现代电子技术,2017,40(5):10-13,4.基金项目
国防科工局科研项目(2013210C001) （2013210C001）
