fault detection integrated navigation systems state control sensors model of errors parametric identification supervision monitoring fault diagnosis diagnostic reasoning
Issue Date:
2008
Publisher:
Institute of Information Theories and Applications FOI ITHEA
Abstract:
Growth of complexity and functional importance of integrated navigation systems (INS) leads to high
losses at the equipment refusals. The paper is devoted to the INS diagnosis system development, allowing
identifying the cause of malfunction. The proposed solutions permit taking into account any changes in sensors
dynamic and accuracy characteristics by means of the appropriate error models coefficients. Under actual
conditions of INS operation, the determination of current values of the sensor models and estimation filter
parameters rely on identification procedures. The results of full-scale experiments are given, which corroborate
the expediency of INS error models parametric identification in bench test process.