Subband merging in cosine-modulated filter banks

被引：14
|
作者：
Niamut, OA [1 ]
Heusdens, R [1 ]
机构：
[1] Delft Univ Technol, Dept Mediamat, NL-2628 CD Delft, Netherlands
来源：
IEEE SIGNAL PROCESSING LETTERS | 2003年 / 10卷 / 04期
关键词：
lapped transforms; modulated filter banks; nonuniform filter banks;
D O I：
10.1109/LSP.2003.809032
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Recently, a new method for constructing nonuniform modulated lapped transforms (MLTs) was introduced, by combining subband filters of a uniform MLT. The design, however, was restricted to combining two or four subband filters only, and no systematic design procedure was given., In this letter, we propose an extension to the above-mentioned method that allows arbitrary numbers of subbands to be combined in a systematic way. We investigate the general case of combining filters in arbitrary cosine-modulated filter banks, and give conditions on how to combine the constituent filters such that the resulting nonuniform filter banks have suitable frequency responses.
引用
收藏
页码：111 / 114
页数：4
相关论文
共 50 条
  • [1] On the subband orthogonality of cosine-modulated filter banks
    Lee, Kong A.
    Gan, Woon S.
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2006, 53 (08): : 677 - 681
  • [2] On the subband orthogonality of cosine-modulated filter banks
    Lee, KA
    Gan, WS
    ISPACS 2005: PROCEEDINGS OF THE 2005 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATION SYSTEMS, 2005, : 681 - 684
  • [3] Frequency warping and subband merging for approximating the critical bands with cosine-modulated filter banks
    Parfieniuk, Marek
    Petrovsky, Alexander
    Wan, Wanggen
    2008 INTERNATIONAL CONFERENCE ON AUDIO, LANGUAGE AND IMAGE PROCESSING, VOLS 1 AND 2, PROCEEDINGS, 2008, : 1159 - 1166
  • [4] Near-Perfect Reconstruction Oversampled Nonuniform Cosine-Modulated Filter Banks Based on Frequency Warping and Subband Merging
    Parfieniuk, Marek
    Petrovsky, Alexander
    INTERNATIONAL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS, 2012, 58 (02) : 177 - 192
  • [5] Efficient biorthogonal cosine-modulated filter banks
    Karp, T
    Mertins, A
    Schuller, G
    SIGNAL PROCESSING, 2001, 81 (05) : 997 - 1016
  • [6] A DESIGN OF NONUNIFORM COSINE-MODULATED FILTER BANKS
    LEE, JJ
    LEE, BG
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1995, 42 (11): : 732 - 737
  • [7] A class of cosine-modulated causal IIR filter banks
    Svensson, L
    Löwenborg, P
    Johansson, H
    ICES 2002: 9TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS, VOLS I-111, CONFERENCE PROCEEDINGS, 2002, : 915 - 918
  • [8] Interference suppression using cosine-modulated filter banks
    Medley, MJ
    Saulnier, GJ
    Das, PK
    MILCOM 96, CONFERENCE PROCEEDINGS, VOLS 1-3, 1996, : 1045 - 1049
  • [9] Frame bounds for biorthogonal cosine-modulated filter banks
    Mertins, A
    2002 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I-IV, PROCEEDINGS, 2002, : 1241 - 1244
  • [10] Flexible frequency decompositions for cosine-modulated filter banks
    Niamut, OA
    Heusdens, R
    2003 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL V, PROCEEDINGS: SENSOR ARRAY & MULTICHANNEL SIGNAL PROCESSING AUDIO AND ELECTROACOUSTICS MULTIMEDIA SIGNAL PROCESSING, 2003, : 449 - 452
12345