Efficient Implementation of Complex Modulated Filter Banks Using Cosine and Sine Modulated Filter Banks
نویسندگان
چکیده
منابع مشابه
Efficient Implementation of Complex Modulated Filter Banks Using Cosine and Sine Modulated Filter Banks
The recently introduced exponentially modulated filter bank (EMFB) is a 2M-channel uniform, orthogonal, critically sampled, and frequency-selective complex modulated filter bank that satisfies the perfect reconstruction (PR) property if the prototype filter of an M-channel PR cosine modulated filter bank (CMFB) is used. The purpose of this paper is to present various implementation structures f...
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In Exponentially-Modulated Filter Bank (EMFB) the complex subfilters are generated from a real-valued prototype filter by multiplying the filter impulse response with complex exponential sequences. This gives the possibility to use block transforms with computationally fast algorithms. Our definition for the EMFB is based on Extended Lapped Transform (ELT). Then we may apply Fast ELT based algo...
متن کاملCosine Modulated Non-Uniform Filter Banks
Traditional designs for non-uniform filter bank (NUFB) are usually complex; involve complicated nonlinear optimization with a large number of parameters and lack of linear phase (LP) property. In this paper, we describe a simple design method for multirate near perfect reconstruction (NPR) cosine modulated filter banks with non-uniform frequency spacing and linear phase property that involves o...
متن کاملEecient Prototype Filter Realizations for Cosine-modulated Filter Banks
Filter Banks Tanja Karp(1) and Alfred Mertins(2) (1)Lehrstuhl f ur Elektrotechnik, Universit at Mannheim B6/26, D-68131 Mannheim, Germany, [email protected] (2) University of Kiel, Telecommunications Institute Kaiserstr. 2, D-24143 Kiel, Germany, [email protected] r esum e Cet article presente des implantations optimis ees de ltres prototypes de bancs de ltres modul es a reconst...
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Filter bank based transmultiplexer systems have certain advantages compared with existing DFT-based multicarrier systems and they are promising candidates for data transmission in frequency selective channels. We have recently proposed a novel and efficient channel equalization idea to be used with critically decimated perfect reconstruction cosine modulated transmultiplexer systems. The equali...
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ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2006
ISSN: 1687-6180
DOI: 10.1155/asp/2006/58564