The Fast Implementation of Arbitrary  Length  Linear  Phase Cosine  Modulated Filter Bank

GAO Xi  qi; QI Jun; HE Zhen  ya

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The Fast Implementation of Arbitrary Length Linear Phase Cosine Modulated Filter Bank

更新时间：2025-12-08

- The Fast Implementation of Arbitrary Length Linear Phase Cosine Modulated Filter Bank
- Acta Electronica Sinica Issue 10, Pages: 43-46(1999)
- 作者机构：
  
  东南大学无线电工程系!南京210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN713.1
- Published：1999
- 稿件说明：
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[1]高西奇,祁俊,何振亚.任意长度线性相位余弦调制滤波器组的快速实现[J].电子学报,1999(10):43-46.

GAO Xi qi, QI Jun, HE Zhen ya. The Fast Implementation of Arbitrary Length Linear Phase Cosine Modulated Filter Bank[J]. Acta Electronica Sinica, 1999, (10): 43-46.
[1]高西奇,祁俊,何振亚.任意长度线性相位余弦调制滤波器组的快速实现[J].电子学报,1999(10):43-46. DOI：

GAO Xi qi, QI Jun, HE Zhen ya. The Fast Implementation of Arbitrary Length Linear Phase Cosine Modulated Filter Bank[J]. Acta Electronica Sinica, 1999, (10): 43-46. DOI：

摘要

本文研究任意长度线性相位余弦调制滤波器组的快速实现，利用其原型滤波器的对称性，得到了一种更为有效的实现结构，与传统实现不同，新的实现结构使用２ ×２无损格型滤波器代替２ ×１无损格型滤波器，而格型滤波器的个数减少了一半，由此有效地降低了滤波器组的实现复杂度

Abstract

In this paper

the fast implementation of an arbitrary length linear phase cosine modulated filter bank is investigated.By using the prototype filter symmetry of the filter bank

we obtain a more efficient implementation structure in which 2×2 lossless lattices are used instead of 2×1 ones in the traditional implementation.The total number of the two channel lossless lattices is reduced by half.The implementation cost is saved significantly

especially for the case with large ratio of the length to the number of channels.

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