Error Analysis of TDM/FDM Signal Transform Realized by WFT Algorithm

He Zhen-yar; Mao Yi-min; Qi Yong-gong

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Error Analysis of TDM/FDM Signal Transform Realized by WFT Algorithm

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- Error Analysis of TDM/FDM Signal Transform Realized by WFT Algorithm
- Acta Electronica Sinica Issue 4, Pages: 84-93(1983)
- 作者机构：
  
  南京工学院
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- Published：1983
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[1]何振亚,茅一民,亓永刚.用WFT算法实现TDM/FDM信号变换的误差分析[J].电子学报,1983(04):84-93.

He Zhen-yar, Mao Yi-min, Qi Yong-gong. Error Analysis of TDM/FDM Signal Transform Realized by WFT Algorithm[J]. Acta Electronica Sinica, 1983, (4): 84-93.
[1]何振亚,茅一民,亓永刚.用WFT算法实现TDM/FDM信号变换的误差分析[J].电子学报,1983(04):84-93. DOI：

He Zhen-yar, Mao Yi-min, Qi Yong-gong. Error Analysis of TDM/FDM Signal Transform Realized by WFT Algorithm[J]. Acta Electronica Sinica, 1983, (4): 84-93. DOI：

摘要

本文分析了TDM/FDM变换复接系统中数字信号处理器的系数误差和定点运算误差

以及两种误差对于系统特性和噪声特性的影响。所分析系统是用维纳格阑-付里叶变换算法（WFTA）+数字多相网络

但给出的方法对于一般DFT+多相网络方案也是适用的。文中还分别给出了一般WFTA定点运算误差和复数数字滤波器定点运算误差的分析方法。

Abstract

The coefficient error and the fixed point calculation error of the digital signal processor in a TDM/FDM transmultiplexer are analyzed

so are their effects on the frequency performance and system noise of the processor. The analyzed processor adopts WFTA + Poly-phase network scheme

but the analysis method in this paper can also be applied to general DFT + polyphase network schemes. Analysis methods are also given for the fixed point calculation errors of general WFTA and of complex digital filters.

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