| 码分多址系统语音编码的研究 |
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| 引用本文： | 刘德成,温启荣.码分多址系统语音编码的研究[J].重庆邮电学院学报(自然科学版),1997,9(2):23-26. |
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| 作者姓名： | 刘德成 温启荣 |
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| 作者单位： | 重庆邮电学院 |
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| 摘 要： | 作者在本文对码分多址系统的语音编码技术作了探讨。首先阐述了ＣＤＭＡ语音编码的基本原理，然后介绍了对语音参数中的线谱对量化所作的改进，提出了比原方案全速率降低５５０ｂｉｔ／ｓ的一种新方法，还通过ＭＡＴＬＡＢ模拟试验对语音编码原方案与其改进后的效果作了比较。
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| 关 键 词： | 码分多址系统 语音编码 多址通信系统 |
Research on the Speech Signal Coding of CDMA |
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| Liu Decheng,Wen Qirong.Research on the Speech Signal Coding of CDMA[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),1997,9(2):23-26. |
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| Authors: | Liu Decheng Wen Qirong |
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| Abstract: | This paper deals with the Speech Signal Coding Scheme in CDMA(Code Division Multiple Access) by first stating the basic principles of speech coding in CDMA, then proposing a new method for improving the LSP (Linear Spectrum Pair) quantizer in the speech signal parameters which can reduce 550bit/s at rate 1 in comparison with the original method, and finally comparing the results produced respectively by the original and improved speech coding schemes through MATLAB simulation. |
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| Keywords: | CDMA Speech Coding MATLAB LSP |
| 本文献已被 CNKI 维普 等数据库收录！ |
