A Parameter Identification Approach to the Analog Fault Diagnosis

Guo Yu-shun; Zhao Guo-nan

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A Parameter Identification Approach to the Analog Fault Diagnosis

更新时间：2025-12-08

- A Parameter Identification Approach to the Analog Fault Diagnosis
- Acta Electronica Sinica Issue 3, Pages: 54-59(1988)
- 作者机构：
  
  杭州电子工业学院
- 作者简介：
- 基金信息：
- DOI：
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- Published：1988
- 稿件说明：
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[1]郭裕顺,赵国南.用元件参数解法的模拟电路故障诊断[J].电子学报,1988(03):54-59.

Guo Yu-shun, Zhao Guo-nan. A Parameter Identification Approach to the Analog Fault Diagnosis[J]. Acta Electronica Sinica, 1988, (3): 54-59.
[1]郭裕顺,赵国南.用元件参数解法的模拟电路故障诊断[J].电子学报,1988(03):54-59. DOI：

Guo Yu-shun, Zhao Guo-nan. A Parameter Identification Approach to the Analog Fault Diagnosis[J]. Acta Electronica Sinica, 1988, (3): 54-59. DOI：

摘要

本文首先阐明:在模拟电路故障诊断的元件参数求解法中

引进适当的辅助变量有利于降低诊断方程的非线性。注意到文中所导出的这类仅二阶的非线性诊断方程

其Jacobi矩阵具有规则结构

从而给出一个基于QR分解的分块求解算法。最后以文献[5]中的一个视频放大器为例进行比较

结果表明本文的诊断方程及算法效果优异。

Abstract

The paper demonstrates that the introduction of certain auxiliary variables is beneficial to lower the nonlinearity of diagnosis equation in the parameter identification approach to analog fault diagnosis. A system of such two order nonljnearity diagnosis equations is derived with its Jacobian matrix having a regular structure

thus a partitioning algorithm based on the block QR decomposition of a matrix is proposed. A video amplifier in [ 5 ] is used as an example for comparison and the results show that our diagnosis equation and algorithm are novel.

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