Board-Grade Circuit Fault Quick Diagnosis in Radar Based on L-M Algorithm

There are many removable board-grade circuits in new type radar. In order to recognize circuit faults quickly, an artificial neural network based on L-M algorithm is adopted; the circuit fault diagnosis principle is analyzed; the platform of fault sample train and fault diagnosis is structured, and testing samples are trained with the platform, and then circuit faults are recognized. The diagnosis result shows that the fault diagnosis method is superior to others, can accurately locate fault area, and resolve the problem in new type radar removable board-grade circuit diagnosis.