标题: | Optimal biorthogonal transform for colored noise suppression with subband Wiener filtering |
作者: | Phoong, SM Lin, YP 电控工程研究所 Institute of Electrical and Control Engineering |
关键字: | denoising;filter bank;noise suppression;subband Wiener filter;transform |
公开日期: | 1-五月-2002 |
摘要: | It is well-known that the Karhunen-Loeve transform (KLT) is optimal for white noise suppression. Recently, Akkarakaran and Vaidyanathan showed that for the case of colored noise, if both the noise and signal have a common KLT, then the KLT is optimal for subband noise suppression. In this paper, we will derive the optimal transform (not restricting to the class of unitary transforms) for the noise suppression problem when the signal and noise have arbitrary spectrum. |
URI: | http://dx.doi.org/10.1109/LSP.2002.1009007 http://hdl.handle.net/11536/28827 |
ISSN: | 1070-9908 |
DOI: | 10.1109/LSP.2002.1009007 |
期刊: | IEEE SIGNAL PROCESSING LETTERS |
Volume: | 9 |
Issue: | 5 |
起始页: | 154 |
结束页: | 156 |
显示于类别: | Articles |
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