Title :
A fast integrity algorithm for the ultra-tight coupled GPS/INS system
Author :
Wu Xiao-dong ; Wu Si-liang ; Wang Ju Li Jia-qi
Author_Institution :
Dept. of Electron., Beijing Inst. of Technol., Beijing
Abstract :
This paper discusses current integrity algorithms to deal with ultra-tight coupled GPS/INS system failures. Using the simulated output of the aircraft based INS and GPS receiver, current integrity algorithms are evaluated. A new algorithm based on detection of the growth rate of a typical test statistic is presented. Results show that the new algorithm detects slowly growing ramp-type failures faster than the current methods. This will enable early detection of such errors for enhanced integrity performance.
Keywords :
Global Positioning System; statistical testing; GPS receiver; fast integrity algorithm; test statistic; ultra-tight coupled GPS/INS system; Aerospace electronics; Aircraft; Detectors; Geometry; Global Positioning System; Inertial navigation; Satellite navigation systems; Stability; Statistical analysis; Testing; GI-RAIM; Rate Detector Algorithm; Ultra-tight Coupled GPS/INS System;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697677
