节点文献
基于DSP的回波抵消技术
Realization of the echo cancellation on DSP
【摘要】 语音通信中的回波导致通信质量下降,信道中加入自适应FIR数字滤波器以实现回波抵消.自适应滤波器采用最小均方算法(LMS)进行滤波器系数和输出的计算,使用数字信号处理器TMS320C5402芯片完成最小均方算法和回波抵消,实现语音通信质量的提高.
【Abstract】 Echo in communication leads to the drop in the quality of communication.FIR adaptive digital filter joined in channel was used to carry out the echo cancellation.LMS was adopted to calculate the coefficients of filter and output,while TMS320C5402 digital signal processor can finish LMS and echo cancellation to improve the quality of voice communication.
【关键词】 回波抵消;
自适应滤波器;
算法;
DSP;
【Key words】 <Keyword>echo cancellation; adaptive filter; arithmetic; DSP;
【Key words】 <Keyword>echo cancellation; adaptive filter; arithmetic; DSP;
- 【文献出处】 包头钢铁学院学报 ,Journal of Baotou University of Iron and Steel Technology , 编辑部邮箱 ,2005年02期
- 【分类号】TN916.2
- 【被引频次】11
- 【下载频次】245