摘要
为了增加电力线载波机传输容量、提高话音质量 ,提出在研制数字式电力线载波机中使用语音压缩编码技术对传统的模拟式电力线载波机进行改进。通过对各种语音压缩编码方案的比较 ,从中挑选出语音恢复质量高的压缩编码方法——多带激励语音编码算法及基于此算法的性能价格比高的语音压缩编码芯片AMBE- 1 0 0 0 ,设计和实现一种语音压缩速率为
To improve the power line carrier's transmission capacity and its tone quality, this paper puts forward a method of adapting voice compressed encoding and decoding technology in developing the digital power line carrier(DPLC) to improve the performance of the traditional APLC. The high voice recovery quality algorithm--the multi band excitation algorithm and the high performance/cost ratio multi band excitation chip--AMBE 1000 vocoder are choosed based on the comparison among various voice compressed encoding and decoding schemes. The voice compressed coder rate of 8kb/s is developed.
出处
《现代电力》
2002年第1期70-75,共6页
Modern Electric Power
关键词
数字式电力线载波机
语音压缩编码
电力系统
通信
voice compressed encoding
multi band excitation algorithm
power line carrier communication system
