(3 ) features of turbopump test data both in time domain and in frequency domain are analyzed using statistical estimation methods . the value of applying these features into nd is discussed (3)應(yīng)用統(tǒng)計(jì)特征估計(jì)方法,分別對(duì)渦輪泵試車數(shù)據(jù)的時(shí)域特征和頻域特征進(jìn)行了統(tǒng)計(jì)分析,并討論了這些特征在新異類檢測(cè)中的應(yīng)用價(jià)值。