Rotation Transform and DEUT in Underdetermined Blind Source Separation

GAO Feng; XIAO Ming; SUN Gong-xian; XIE Sheng-li

doi:10.3969/j.issn.0372-2112.2012.06.009

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Rotation Transform and DEUT in Underdetermined Blind Source Separation

更新时间：2025-07-16

- Rotation Transform and DEUT in Underdetermined Blind Source Separation
- Acta Electronica Sinica Vol. 40, Issue 6, Pages: 1121-1125(2012)
- 作者机构：
  
  1. 华南理工大学电子与信息学院,广东,广州,510640
  2. 广东省石化装备故障诊断重点实验室,广东,茂名,525000
  3. 东莞泰斗微电子科技有限公司,广东,东莞,523808
  4. 深圳同洲电子股份有限公司,广东,深圳,518057
  5. 华南理工大学电子与信息学院广东广州,510640
  6. 广东省石化装备故障诊断重点实验室广东茂名,525000
  7. 东莞泰斗微电子科技有限公司广东东莞,523808
  8. 深圳同洲电子股份有限公司广东深圳,518057
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2012.06.009
  CLC： TN911
- Published：2012
- 稿件说明：
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GAO Feng, XIAO Ming, SUN Gong-xian, et al. Rotation Transform and DEUT in Underdetermined Blind Source Separation[J]. Acta Electronica Sinica, 2012, 40(6): 1121-1125.
DOI：

GAO Feng, XIAO Ming, SUN Gong-xian, et al. Rotation Transform and DEUT in Underdetermined Blind Source Separation[J]. Acta Electronica Sinica, 2012, 40(6): 1121-1125. DOI： 10.3969/j.issn.0372-2112.2012.06.009.

摘要

DUET是采用时频掩码求解欠定问题的著名算法.本文讨论旋转变换对DUET算法的影响

提出了一个改进的DUET算法.该算法利用混叠矩阵的任意两列作为旋转矩阵

先旋转接收信号和混叠矩阵

后执行DUET算法.因为DUET算法在不同的旋转变换下有不同的结果

所以需要将这些结果相加

以弥补DUET算法的失真.最后

几个语音信号的实验结果显示算法的性能和实用.

Abstract

DUET is a famous algorithm to resolve underdetermined problem using time frequency mask.Effect on rotation transform on DUET is discussed and an improved DUET algorithm is proposed in this paper.The algorithm rotates the mixtures and mixing matrix using the rotation matrix

which is formed by any two columns in the mixing matrix

and then do DUET algorithm.Because the results are different in DUET algorithms under different rotations

the algorithm sums the results to improve the distortion.Finally

several speech signal experiments demonstrate its performance and practice.

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