海军航空工程学院学报Issue(1)：38-42,5.DOI:10.7682/j.issn.1673-1522.2014.01.009
基于Turbo方法的乘积码脉冲位置迭代调制解调译码
Demodulation and Decoding of Product Coded Pulse Position Modulation Based on Turbo Method
胡昊 1马珊珊 2朱四华 1李笔锋1
作者信息
- 1. 海军航空工程学院电子信息工程系，山东烟台264001
- 2. 烟台职业学院，山东烟台264670
- 折叠
摘要
Abstract
To reduce the influence of atmospheric turbulence, turbo technique was used in process of PPM demodulation and product code decoding. The soft detection demodulation method of PPM was deduced based on maximum likelihood rules, combined with SISO block decoding, the structure of Turbo demodulation and decoding was constituted, iterate algo-rithm was also given. Simulation results showed that, the performance could be improved with increasing of iterations, and under condition of 0.1 atmospheric index and BER 10-6 , with 3~5 iterations the iterate algorithm would provide more than 0.8 dB gain compared to no-iteration system.关键词
无线光通信/脉冲位置调制/编码调制/Turbo/软输入软输出Key words
wireless optical communication/PPM/coded modulation/Turbo/SISO分类
电子信息工程引用本文复制引用
胡昊,马珊珊,朱四华,李笔锋..基于Turbo方法的乘积码脉冲位置迭代调制解调译码[J].海军航空工程学院学报,2014,(1):38-42,5.
