Application of AR model on the online diagnosis of gyros
Xu Jiang · Journal of Naval University of Engineering · 2001
In this paper, the performance of the gyroscope's fault signal of the inertial navigation system is researched. We first analyze the stationary characteristics of the random drift signal of the gyroscope in the common condition,work out the signal eigenvalues (mean, standard deviationand covariance) and build the signal 's AR model and power spectra chart. Then two kinds of fault of the system are analyzed by the same method. Finially, all data have been compared in detail, and a fault's eigenvalue has been found out. The eigenvalue can act as the proof of estimating the gyroscope performance.