A New χ~2 Fault Detection Method and Its Application
LI Chun-ke · Flight Dynamics · 2008
In this paper,state χ2 test was used in fault detection for the SINS/GPS integrated navigation system.Because of the shortcomings evoked by time,a new principle for the state propagator was presented based on velocity error and compared with double state χ2 test.This method reduced the polluted frequency of the state propagator greatly and enhanced sensibility of fault detection.The validity of the method was performed through some simulations.