| HT-LSM的欠定混合盲信号分离方法的研究 |
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| 引用本文： | 王莹,李宏伟,付红伟.HT-LSM的欠定混合盲信号分离方法的研究[J].计算机工程与应用,2010,46(32):133-136. |
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| 作者姓名： | 王莹 李宏伟 付红伟 |
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| 作者单位： | 1.中国地质大学 数理学院，武汉 430074 2.军事经济学院 计算机中心，武汉 430035 |
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| 摘 要： | 利用Hough变换可以检测观测空间中的直线方向从而确定混叠矩阵的方法，提出了欠定盲源分离中估计混叠矩阵的一种新算法——HT-LSM算法。该算法在介绍欠定盲信号分离基本原理的基础上，介绍基于Hough变换的盲信道估计算法，并将改进后的Hough变换与最小二乘法相结合，在不影响检测结果速度的同时又进一步提高了检测精度，应用到欠定语音信号分离中，取得了良好的实验效果。
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| 关 键 词： | 欠定盲信号分离 Hough变换 最小二乘法 |
| 收稿时间： | 2009-3-30 |
| 修稿时间： | 2009-6-9
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Algorithm based on HT-LSM for underdetermined blind source separation |
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| WANG Ying,LI Hong-wei,FU Hong-wei.Algorithm based on HT-LSM for underdetermined blind source separation[J].Computer Engineering and Applications,2010,46(32):133-136. |
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| Authors: | WANG Ying LI Hong-wei FU Hong-wei |
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| Affiliation: | 1.School of Mathematics and Physics，China University of Geosciences，Wuhan 430074，China 2.Computer Center，Military Economy Academy，Wuhan 430035，China |
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| Abstract: | Hough Transform which is always used in image processing,turns the detection of the direction to the peak point detection in transform space in order to estimate the mixed matrix.This method is a new algorithm--HT-LSM algorithm.The paper firstly introduces blind mixing model recovery with Hough Transform,then combines the improved Hough Transform and least-squares method,it comes out to improve the speed and the accuracy at the same time.This method is applied to underdetermined speech signal separation,and achieves good effect of the experiment. |
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| Keywords: | underdetermined blind source separation Hough transformation least square method |
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