Wavelet-based algorithm for fault diagnosis and prognosis of radar fuze
Hongguang Ma, Chongzhao Han · Systems engineering and electronics · 2004
A new algorithm of fault diagnosis and prognosis for radar fuze is presented. By means of the information cost function, which is constructed by the approach of information entropy of time series, an optimal wavelet basis is selected based on the testing data of radar fuzes. Then the characteristic of leakage pulses of radar fuzes is analyzed by using the multi-resolution of wavelet. The models corresponding to the normal working state and failure state are established with the mode identification and cross-correlation algorithm. The result of experiment indicates that this algorithm can quantificationally analyze the operating behavior of radar fuzes, and correctlly prognosticate the fault tend.