| 引用本文: | 王耀勋,陈国璋,易波.一种全双工模拟话密系统的自适应回波抵消器.[J].国防科技大学学报,1991,13(4):27-30.[点击复制] |
| Wang Yaoxun,Chen Guozhang,Yi Bo.An Adaptive Echo Canceller in Full-Duplex Analog Speech Secure System[J].Journal of National University of Defense Technology,1991,13(4):27-30[点击复制] |
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| 一种全双工模拟话密系统的自适应回波抵消器 |
| 王耀勋, 陈国璋, 易波 |
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(电子技术系)
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| 摘要: |
| 文中介绍一种全双工模拟话密系统的自适应回波抵消器，该抵消器用块修正方法更新横向滤波器的系数。这种方法的收敛性能和计算效率均优于标准的最小梯度算法，且满足国际电报电话咨询委员会(CCITT)建议的回波抵消器要求G.165. |
| 关键词: 模拟通信，自适应回波抵消器，话音加密 |
| DOI： |
| 投稿日期：1991-02-11 |
| 基金项目: |
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| An Adaptive Echo Canceller in Full-Duplex Analog Speech Secure System |
| Wang Yaoxun, Chen Guozhang, Yi Bo |
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(Department of Electronic Technology)
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| Abstract: |
| The paper introduces an adaptive echo canceller in full-duplex analog speech secure system. The implementation of the canceller is made possible by using a block-update method to update the transversal filter coefficients. The method has advantages in convergence properties and computational efficiency over the standard mininum gradient algorithm. It also meets the echo canceller requirements of the CCITT G.165 recommentlation. |
| Keywords: analog communication,adaptive echo canceller,speech secure |
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