基于伪穷举测试法的雷达板级电路故障诊断  

Fault Diagnosis to Board-Grade Circuits in Radar Based on Pseudo-Exhaustive Test

作　　者：邹明虎[1] 姜树和 闫军[1] 陈力[1] 

机构地区：[1]沈阳军区65185部队 [2]沈阳军区65066部队

出　　处：《测试技术学报》2011年第4期360-365,共6页Journal of Test and Measurement Technology

摘　　要：在新型雷达装备的板级电路中,组合逻辑电路占据了相当大的比例,为了快速诊断板级组合逻辑电路故障,将伪穷举测试法用于故障诊断;在介绍穷举测试法基础上,详细阐述了伪穷举测试法的原理及分块方法;利用伪穷举测试法确定了某型雷达板级组合逻辑电路的测试矢量;建立了故障诊断测试平台;并以实例在平台上对雷达板级组合逻辑电路进行故障诊断.结果表明,该方法诊断准确性高,比其它方法更为快速有效,较好地解决了雷达板级组合逻辑电路故障诊断问题.The combinational logic circuits occupy a considerable proportion in board-grade circuits of the new type radar equipments. In order to recognize board-grade combinational logic circuit faults quickly, the pseudo-exhaustive test was adopted. On the basis of the introduction of exhaustive test, we provided a detailed description to the principle and the block division method of pseudo-exhaustive test, selected the test vectom of the hoard-grade combinational logic circuit of certain a type radar, structured the platform of fault diagnosis and test, and performed fault diagnosis with examples. The result shows that the diagnostic method has high- er accuracy, higher speed and more efficient than other methods, and that it can resolve the fault diagnosis problem of board-grade combinational logic circuits in new type radars.

关 键 词：伪穷举测试法 雷达 板级组合逻辑电路 测试矢量 故障诊断 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置] TN957.529[自动化与计算机技术—控制科学与工程]