TCM在Pattern时延差编码通信体制中的应用

J4 ›› 2011, Vol. 29 ›› Issue (02): 92-.

TCM在Pattern时延差编码通信体制中的应用

崔化超^1|赵安邦^1, 刘佳蕾^1,陈阳^1, 陈凯^1,2

1.哈尔滨工程大学水声技术国防技术重点实验室|哈尔滨 150001；
2. 广东湛江91388部队|广东湛江 524022

出版日期:2011-03-25 发布日期:2011-04-25
通讯作者: 崔化超(1986— ),男，河北河间人,哈尔滨工程大学硕士研究生，主要从事水声信号处理研究,(Tel)86-13674660460 E-mail:chc406495@163.com;
作者简介:崔化超(1986— ),男|河北河间人,哈尔滨工程大学硕士研究生|主要从事水声信号处理研究,(Tel)86-13674660460(E-mail)chc406495@163.com;赵安邦(1978— ),男,山东郓城人|哈尔滨工程大学副教授,硕士生导师,主要从事水声通信研究|(Tel)86-451-82568503 (E-mail)zhaoanbang@hrbeu.edu.cn.
基金资助:
海洋公益性行业科研专项经费基金资助项目(201005001\|05);哈尔滨工程大学中央高校基本科研业务费专项基金资助项目(HEUCFZ1008)

Applied |of Trellis\|Coded Modulation Technique in Underwater Acoustic Communication Based on PDS

CUI Hua-chao^1| ZHAO An-bang¹| LIU Jia-lei¹|CHEN Yang¹,CHEN Kai^1,2

1. |National Laboratory of Underwater Acoustic Technology, Harbin Engineering University, Harbin 150001, China|2. Unit 91388, Peoples Liberation Army, Zhanjiang 524022, China

Online:2011-03-25 Published:2011-04-25

摘要/Abstract

摘要：

Pattern时延差(PDS:Pattern time Delay Shift)编码通信体制具有很好的抗多途干扰能力，但传输过程中仍存在一定的误码。为提高该体制的抗噪声能力，将网格编码调制(TCM:Trellis\|Coded Modulation)技术与PDS体制结合使用，对信息进行网格编码调制和维特比软判决译码。实验结果证明,该方案抗噪声效果显著，可使PDS体制的抗噪声性能提高3 dB左右。

关键词: Pattern时延差编码, 网格编码调制, 差分解码, 软判决维特比译码

Abstract:

The system of PDS(Pattern time Delay Shift) coding communication can resist the multi\|path interfere well，but it can not resist noise in the channel well. Integrating TCM (Trellis\|Coded Modulation) code and PDS scheme can solve this problem by coding the source information with convolutional code and decoding the received sequence by soft\|decision Viterbi algorithm. Experimental results show that the proposed scheme gets about 3 dB coding gain, has better performance over the original decoding scheme.

Key words: pattern time delay shift coding, trellis\, coded modulation, differential decoding, soft-decision Viterbi decoding

中图分类号:

TN911.72

崔化超|赵安邦, 刘佳蕾,陈阳, 陈凯. TCM在Pattern时延差编码通信体制中的应用[J]. J4, 2011, 29(02): 92-.

CUI Hua-chao, ZHAO An-bang, LIU Jia-lei,CHEN Yang,CHEN Kai. Applied |of Trellis\|Coded Modulation Technique in Underwater Acoustic Communication Based on PDS[J]. J4, 2011, 29(02): 92-.