研究了雙線性檢測(cè)濾波器的故障可檢測(cè)條件. 設(shè)計(jì)了一種檢測(cè)濾波器,并得到了其故障完全可檢測(cè)的嚴(yán)格條件. 結(jié)果表明要使檢測(cè)濾波器故障完全可檢測(cè),系統(tǒng)獨(dú)立的傳感器和獨(dú)立的狀態(tài)數(shù)至少和系統(tǒng)故障種類(lèi)相同.這個(gè)結(jié)果符合線性空間的性質(zhì). 最后利用所構(gòu)造的濾波器分析了算例.
關(guān)鍵詞: 雙線性系統(tǒng); 檢測(cè)濾波器; 故障可檢測(cè)性
　　Abstract : The fault detectability condition of bilinear detection filter , a class of nonlinear system , is investigated. A de2 tection filter is designed , and its fault complete detectability condition is obtained. The result indicates that , to make the system faults completely detectable , the system must be of the same number of sensors and independent system states as that of system faults . According to linear space characters , the result is correct . An example is presented for detection filter at last .
Key words : bilinear system; detection filter ; fault detectability ;