Finite Wordlength Effects in Adaptive SLC by Backward Error Analysis

Kong Tieshen.Zhou Zhimin; Liang Diannong

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Finite Wordlength Effects in Adaptive SLC by Backward Error Analysis

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- Finite Wordlength Effects in Adaptive SLC by Backward Error Analysis
- Acta Electronica Sinica Issue 4, Pages: 82-87(1990)
- 作者机构：
  
  1. 国防科技大学
  2. 国防科技大学长沙
- 作者简介：
- 基金信息：
- DOI：
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- Published：1990
- 稿件说明：
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[1]孔铁生,周智敏,梁甸农.自适应旁瓣对消有限字长效应的后向分析[J].电子学报,1990(04):82-87.

Kong Tieshen.Zhou Zhimin, Liang Diannong. Finite Wordlength Effects in Adaptive SLC by Backward Error Analysis[J]. Acta Electronica Sinica, 1990, (4): 82-87.
[1]孔铁生,周智敏,梁甸农.自适应旁瓣对消有限字长效应的后向分析[J].电子学报,1990(04):82-87. DOI：

Kong Tieshen.Zhou Zhimin, Liang Diannong. Finite Wordlength Effects in Adaptive SLC by Backward Error Analysis[J]. Acta Electronica Sinica, 1990, (4): 82-87. DOI：

摘要

本文利用数值摄动理论中的后向误差分析法

研究自适应旁瓣对消系统A/D变换器量化误差和运算器运算舍入误差对阵性能的影响。文中提出的全后向分析法所得阵性能界比通常的权误差界估计的精度有极大提高

可应用于阵性能的定量估计。计算机仿真结果和理论分析一致性良好。

Abstract

Based on backward error analysis in numerical perturbation theory

the finite wordlength effects on the performance of adaptive sidelobe canceller （SLC） are studied in this paper.A new upper bound formula of the performance parameters has been derived and great improvement in bound precision is reached as compared with the ordinary method. As a result

a quantitative evaluation of the array performance by finite wordlength effects can be made. Some concise formulas for wordlength selection in digital sidelobe canceller are presented as well. The theoretical results well agree with the computer simulations.

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