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DOI码：10.1016/j.sigpro.2010.07.009

发表刊物：SIGNAL PROCESSING

摘要：Critically sampled perfect reconstruction lapped transforms (LT), apart from signal representation, are difficult to use for signal analysis and processing. We tackle this problem by establishing a novel connection between the LT and the DFT based on matrix analysis. Specifically, for the modified discrete cosine transform (MDCT) with an arbitrary symmetric window, one of the most widely used LT, a sparse matrix representation for the conversion to and from the DFT is developed, leading to an efficient implementation in the form of low-order frequency domain FIR filtering. We give two example applications, MDCT domain group delay estimation and aliasing reduction for the temporal noise shaping (TNS). (C) 2010 Elsevier B.V. All rights reserved.

合写作者：Dou, W., Yang, H.,Aoyan Dong, Ping Chi, Shaowu Li, Constans, J.-M.

第一作者：Zhang, S.,Weibei Dou, Aoyan Dong, Ping Chi, Shaowu Li, Constans, J.-M.

论文类型：期刊论文

卷号：91

期号：2

页面范围：300-310

ISSN号：0165-1684

是否译文：否

发表时间：2011-02-01