4 Ferraris F,GoriniI, Parvis M. Intelligent multiinput instrument for electrical measurements[J].Measurement,1987, 5(2):55~60.
5 U Kastli . Accuracy considerations in the design of digital instrumentation[J].Measurement,1991, (9):133~142.
6Isermann R , Ball6 P. Trends in the Application of Model-based Fault Detection and Diagnosis of Technical Processes[J]. Control Eng Practice, 1997, 5(5): 709-719.
7Zheng H, Li Z ,Chen X. Gear Fault Diagnosis Based on Continuous Wavelet Transform[J]. Mechanical Systems and Signal Processing, 2002, 16(2): 447-457.