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基于IEEE1149.4标准的模拟电路故障诊断研究

更新时间:2020-07-25 08:02:09 大小:298K 上传用户:songhuahua查看TA发布的资源 标签:ieee1149模拟电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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随着电子系统的集成度越来越高,内部结构越来越复杂,传统的物理探针已经无法满足测试要求。简要介绍了IEEE1149.4标准和支持向量机理论基础,提出了一种基于IEEE1149.4标准的模拟电路故障诊断方案。该方法利用SVM实现故障检测,结合电路分块方法和IEEE1149.4标准中的开关矩阵对电路分块,实现故障定位。最后对此方法的可行性和准确性进行了仿真验证,结果表明此方法在准确判断电路是否存在故障的同时,也能实现故障定位,达到误判率为零的结果 。

With the increasing integration of the electronic system and complexity of its internal structure, the traditional physical probes have been unable to meet the testing requirements. After introducing the IEEE1149.4 standard and the theoretical basis of support vector machines briefly, a fault diagnosis scheme for analog circuits based on IEEE1149.4 standard is lt detection is achieved with the usage of SVM in this method, and fault location is realized by combining the circuit block with the switch matrix in IEEE1149.4 standard to divide the circuit under test. Finally, the feasibility and accuracy of the method is verified with simulation. And the results show that fault location could be achieved, when...

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基于IEEE1149.4标准的模拟电路故障诊断研究.pdf 298K

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