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中文摘要：
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.
英文摘要：
DUET is a famous algorithm to resolve underdetennined 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 coltmns 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 distor- tion. Finally, several speech signal experiments demonstrate its performance and practice.
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