Delay Matching in Adaptive Interference Cancellation System

JIANG Yun-hao; MA Wei-ming; ZHAO Zhi-hua; TANG Jian; LI Wen-lu; XIAO Huan

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Delay Matching in Adaptive Interference Cancellation System

更新时间：2025-07-16

- Delay Matching in Adaptive Interference Cancellation System
- Acta Electronica Sinica Vol. 39, Issue 8, Pages: 1927-1931(2011)
- 作者机构：
  
  1. 华中科技大学电气与电子工程学院,湖北,武汉,430074
  2. 海军工程大学舰船综合电力技术国防科技重点实验室,湖北,武汉,430033
  3. 华中科技大学电气与电子工程学院湖北武汉,430074
  4. 海军工程大学舰船综合电力技术国防科技重点实验室湖北武汉,430033
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.4
- Published：2011
- 稿件说明：
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JIANG Yun-hao, MA Wei-ming, ZHAO Zhi-hua, et al. Delay Matching in Adaptive Interference Cancellation System[J]. Acta Electronica Sinica, 2011, 39(8): 1927-1931.
DOI：

JIANG Yun-hao, MA Wei-ming, ZHAO Zhi-hua, et al. Delay Matching in Adaptive Interference Cancellation System[J]. Acta Electronica Sinica, 2011, 39(8): 1927-1931. DOI：

摘要

分析了模拟实现的自适应干扰对消系统中存在时延失配情况下系统的性能.通过理论计算求解了时延条件下的周期时变微分方程组

得到时延增大与系统收敛速度降低的结论

分析得到系统稳定性的判断标准.通过对系统模型的简化分析

得到时延与稳态权值的关系式

并求解得到时延与稳态误差的量化关系

以及干扰对消比随时延变化的规律.最后通过仿真和实验证实了理论分析的正确性.

Abstract

The time domain performance of analog adaptive interference cancellation system with delay mismatching is analyzed.Through theory calculation

the stability criterion of the system with delay is obtained.In the stable region

the convergence speed is redeced with the increase of the delay.Through solving and analyzing of the simplification model

the relation of stable state weights and delay is gained.The variation rule of residual error and interference cancellation ratio with delay is calculated.The simulations and experiments are agreement with the theory analyses.

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