基于DSP的ACELP语音编码系统  

ACELP speech coding system based on DSP

作　　者：韩剑坡[1] 王林斗[1] 郝晓鹏 张书军[1] 海春辉 

机构地区：[1]天津大学,天津300072 [2]电子科技集团第54所,石家庄050081 [3]飞思卡尔,天津300040

出　　处：《电子测量技术》2007年第1期147-149,共3页Electronic Measurement Technology

摘　　要：近年来,随着通信技术的不断发展,集群通信在我国现代化建设中的作用越来越突出。在数字集群通信系统中,语音编码技术起着相当关键的作用。本文将语音编码算法应用于数字集群通信系统中,实现了基于DSP的ACELP语音编码系统。以DSPTMS320C5410为硬件环境,采用编码速率4.567Kbt/s的代数码本的激励线性预测(ACELP)算法,并给出了电路设计方案、软件设计方案以及仿真结果。本文所设计的方案对数字集群通信系统中语音编码的开发和研究具有一定的理论和实践意义。As the development of communication techniques, speech coding plays key role in digital trunked radio communication system. In this paper, we designed a system of TETRA speech coding based on DSP, which used DSP TMS320C5410 as the hardware foundation, ACELP as algorithm, whose coding speed was 4. 567 Kb/s. We presented electro circuit scheme, software structure and the simulation result. The system is important to the development and research of speech coding in the digital trunking communication system in theory and practice.

关 键 词：集群通信系统 ACELP DSP 

分 类 号：TN912.3[电子电信—通信与信息系统]