FIELD: radio engineering, communication.
SUBSTANCE: method involves recording the reaction of a fault-free and controlled system, setting the minimum value of the square of standard deviation of signals of the controlled and fault-free system, generating a signal as a square of the standard deviation of reactions of the controlled system and the fault-free system, setting the minimum of current values, generating a signal as the minimum of current values of coefficients of discrimination of all pairs of defects, determining integral estimates of output signals, transmitting output signals of multiplier units to inputs of integrating units, recording the obtained estimates of output signals, determining the number of structural defects of units, determining integral estimates of model signals, recording estimates of output signals obtained from integration, determining deviation of integral estimates of model signals, determining standardised values of deviation of integral estimates of model signals, replacing the system with nominal characteristics of the controlled system, transmitting an analogue test signal to the input of the system, determining integral estimates of signals of the controlled system, determining deviation of integral estimates of signals, determining standardised values of deviation of integral estimates of signals, determining diagnostic features, determining the serial number of the defective unit from the minimum value of the diagnostic feature.
EFFECT: improved noise-immunity of diagnosing control systems by improving distinguishability of defects.
2 dwg
