基于MELP的水下实时语音通信机的研究与实现  

Research and implementation of underwater acoustic real-time voice communication prototype based on MELP

作　　者：黄李海[1] 胡晓毅[1] 解永军[1] 王德清[1] 陈华宾[1] 

机构地区：[1]厦门大学水声通信与海洋技术教育部重点实验室,福建厦门361005

出　　处：《电子技术应用》2013年第3期17-19,共3页Application of Electronic Technique

基　　金：中央高校基本科研业务费专项资金资助(2010121062)

摘　　要：根据水声通信的复杂信道特性,对混合激励线性预测语音编码MELP算法和低密度奇偶校验码LDPC的结合进行了研究,设计了基于ARM+DSP的多载波水声实时语音通信样机。经水池实验测试,系统表现出良好的实时性和语音可懂度性能,可分辨出不同说话人的声音。Taking the complexity of the underwater acoustic communication channel characteristics into account, the combination of mixed excited linear prediction（MELP） and low density parity check（LDPC） were studied and a multi-carrier underwater acoustic real-time voice communication prototype based on ARM＋DSP was designed. By the expreimental test in pool, the proposed system showed a good real-time and voice intelligibility performance, and could distinguish the voice of different speakers.

关 键 词：水下实时语音通信 MELP算法 LDPC码 OFDM调制 

分 类 号：TN929.3[电子电信—通信与信息系统]