会议专题

Design of Underwater Voice Communications System

This paper deals with the design of a digital underwater voice communication system. Digital techniques can achieve a synthesized speech with a good quality. The speech transmission rate is compressed down to 6.3Kbits/s using a TrueSpeech Co- processor (CT8020). The bit rate is expected to be about 8Kbits/s after channel coding. A QPSK modulation with differential was chosen to transmit the useful signal. At the receiver we used a scheme where synchronization and equalization were jointly optimized. The whole system has been implemented on DSPs (CT8020+TIs DSP).

Chen Jie Gao Wei Sang Enfang

Harbin Engineering University, Harbin, 150001, P. R. China

国际会议

2007年国际声学工程与技术学术会议

北京

英文

51-54

2007-10-01(万方平台首次上网日期,不代表论文的发表时间)