Receiving Circuit Fault Diagnosis Method of High-frequency Communication System Based on Time Series Analysis
The existing diagnostic methods for receiving circuits in high-frequency communica-tion systems have a high misdiagnosis rate for different fault points,and there is a significant de-crease in receiving sensitivity.Therefore,a fault diagnosis method for receiving circuits in high-frequency communication systems based on time series analysis is studied.Firstly,collect the cir-cuit signals in the receiving circuit of the high-frequency communication system.Then,the time series analysis method is used to extract fault features from multi-channel signals in the receiving circuit of the high-frequency communication system.Finally,the similarity method is used to obtain the similarity between the kurtosis trends of the signals received by the high-frequency communication system's receiving circuit,and compared with the threshold to achieve fault di-agnosis.The experimental results show that the sensitivity of the experimental group is main-tained at 60-70dBm,and the stability of the signal is good;The misdiagnosis rate is 0％～0.1％,which is relatively low and can effectively improve the accuracy of fault diagnosis,making it practical.
time serieshigh-frequency communicationcircuit faultdiagnosis
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