| 端到端保密通信中的类语音调制解调器设计 |
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| 引用本文： | 杨典兵,罗兴国,张汝云.端到端保密通信中的类语音调制解调器设计[J].计算机应用与软件,2010,27(4):64-67. |
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| 作者姓名： | 杨典兵 罗兴国 张汝云 |
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| 作者单位： | 国家数字交换系统工程技术研究中心,河南,郑州,450002 |
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| 基金项目： | 国家高技术研究发展计划项目(2007AA01Z431) |
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| 摘 要： | 针对当前移动端到端保密通信方式存在的问题,研究基于网络无感的高质量端到端保密通信方法。关于其中语音信号因加密随机化而不能被声码器正确解码的问题,分析了一种声码器的结构原理,提出了类语音调制解调算法,将加密语音数据经类语音转换调制到终端声码器的输出比特流上进行传送。介绍了调制解调算法的比特映射模型及相关参数码本的设计方法。
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| 关 键 词： | 类语音 调制 解调 声码器 |
DESIGN OF SPEECH-LIKE MODEM IN END-TO-END SECURE COMMUNICATION |
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| Yang Dianbing,Luo Xingguo,Zhang Ruyun.DESIGN OF SPEECH-LIKE MODEM IN END-TO-END SECURE COMMUNICATION[J].Computer Applications and Software,2010,27(4):64-67. |
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| Authors: | Yang Dianbing Luo Xingguo Zhang Ruyun |
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| Affiliation: | National Digital Switching System Engineering and Technological Research Center/a>;Zhengzhou 450002/a>;Henan/a>;China |
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| Abstract: | In order to overcome the problems existing in current end-to-end secure mobile communication patterns,we studied high quality end-to-end secure communication scheme based on networkimperception. In light of the issue that the speech data can not be correctly decoded by vocoder due to its randomized encryption process,after analyzing the structure and principle of a kind of vocoder named EVRC,we presented a speech-like modem algorithm to deal with it. The algorithm modulates the encrypted speech data onto th... |
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| Keywords: | Speech-like Modulate Demodulate Vocoder |
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