کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
563627 875517 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An iterative approach for minimax design of multidimensional quadrature mirror filters
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
An iterative approach for minimax design of multidimensional quadrature mirror filters
چکیده انگلیسی

In this paper, a nest of iterative techniques is proposed for the minimax design of quadrature mirror filter (QMF) banks. The method can be generalized such that multidimensional QMF banks can be designed by the proposed algorithm. For a given weighting function, an iterative method is used to minimize the objective error function in the inner iterations. To further reduce the peak error of overall magnitude response, an iterative weighting-updated technique is adopted in the outer iterations. Comparing with the existing works concern the design of perfect-reconstruction QMF banks, only one of the filters is needed to be designed under the cost of magnitude distortion, but the system complexity can be reduced drastically. Several examples, including design of 2-D and 3-D QMF banks, will be presented to demonstrate the effectiveness of the proposed method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 91, Issue 8, August 2011, Pages 1730–1740
نویسندگان
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