CAJ | 학술논문

在现代新型武器装备中,复杂模拟和数模混合电路的应用在提升装备性能的同时,也对电路故障诊断提出了更高的要求与挑战.故障字典不但具有规范性和实用性等特点,且能有效解决当前复杂电路的故障诊断存在的问题,提高装备的故障诊断效率.本文提出了基于EDA的故障字典生成技术.从该技术的原理出发,详细论述了故障模式集的选择方法、测试点的筛选与优化方法、特征信号的提取方法、基于EDA的故障注入方法和故障字典的生成方法等;最后,以某型机音频处理电路为例,验证了该故障字典生成方法在故障诊断中的可行性和有效性.
재현대신형무기장비중,복잡모의화수모혼합전로적응용재제승장비성능적동시,야대전로고장진단제출료경고적요구여도전.고장자전불단구유규범성화실용성등특점,차능유효해결당전복잡전로적고장진단존재적문제,제고장비적고장진단효솔.본문제출료기우EDA적고장자전생성기술.종해기술적원리출발,상세논술료고장모식집적선택방법、측시점적사선여우화방법、특정신호적제취방법、기우EDA적고장주입방법화고장자전적생성방법등;최후,이모형궤음빈처리전로위례,험증료해고장자전생성방법재고장진단중적가행성화유효성.
The performance of weapons is improved and fault diagnosis becomes more and more difficult while more and more mixed-signal circuit boards are used. And the application proves that the fault dictionary can satisfy the testing and diagnose demands of weapons. In this paper, research on techniques in fault dictionary construction based on EDA is introduced. After describing the basic principle of such method, the paper discussed the selection of fault modes set, filtration and optimization of test points, extraction of characteristic signal, fault injection based on EDA and fault dictionary construction. Finally, by using an audio processing circuit belonged to some airplane, it is validated that the technique in fault dictionary construction is valid and it wil be significant for engineering practicability.