A study on receiver autonomous integrity monitoring in LEO satellites-augmented compass

The paper focuses on the Receiver Autonomous Integrity Monitoring (RAIM) performance of Compass augmentation using a proposed LEO satellite system. The Compass satellite system is briefly reviewed. RAIM algorithm is analyzed, in addition, the measurement equation in the joint Compass/LEO system is constructed. The RAIM performance is analyzed using the rates of fault detection and identification. Based on the authors´ previous work, the performance of the augmented scheme is demonstrated through in-depth numerical simulations. Results show that the augmentation with LEO satellite system will improve the performance of RAIM.