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兩帶自適應(yīng)FIR線性相位雙正交濾波器組設(shè)計(jì)

水冰 史儀凱

水冰, 史儀凱. 兩帶自適應(yīng)FIR線性相位雙正交濾波器組設(shè)計(jì)[J]. 電子與信息學(xué)報(bào), 2006, 28(10): 1950-1954.
引用本文: 水冰, 史儀凱. 兩帶自適應(yīng)FIR線性相位雙正交濾波器組設(shè)計(jì)[J]. 電子與信息學(xué)報(bào), 2006, 28(10): 1950-1954.
Shui Bing, Shi Yi-kai. Design of Signal-Adapted Two-Band Biorthogonal Linear Phase Filter Banks[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1950-1954.
Citation: Shui Bing, Shi Yi-kai. Design of Signal-Adapted Two-Band Biorthogonal Linear Phase Filter Banks[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1950-1954.

兩帶自適應(yīng)FIR線性相位雙正交濾波器組設(shè)計(jì)

Design of Signal-Adapted Two-Band Biorthogonal Linear Phase Filter Banks

  • 摘要: 自適應(yīng)濾波器組設(shè)計(jì)是多速率濾波器組理論和應(yīng)用的一個(gè)重要方面。由于其頻率響應(yīng)更好匹配于輸入信號的統(tǒng)計(jì)特性,這類濾波器組可獲得更大的子帶編碼增益。該文研究了兩帶自適應(yīng)FIR線性相位雙正交濾波器組的設(shè)計(jì)問題,給出了設(shè)計(jì)算法,特別是通過最優(yōu)IIR雙正交濾波器組確定初始點(diǎn)(初始濾波器組)的方法。仿真結(jié)果表明,得到的濾波器組的子帶編碼增益遠(yuǎn)遠(yuǎn)超過了最優(yōu)的IIR正交濾波器組,與已有的設(shè)計(jì)結(jié)果比較,編碼增益明顯提高。
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  • 收稿日期:  2005-01-17
  • 修回日期:  2005-06-28
  • 刊出日期:  2006-10-19

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