A large problem with navigation systems that use GPS is that, due to the possibility of satellite out ages, there are many occasions when the GPS re ceiver fails to deliver enough information to support an error free navigation. In this pap

GPS和INS松组合程序，以及相应的程序说明和数据，包含主函数和卡尔曼滤波，直接可以运行-GPS and INS loose combination of procedures, and the corresponding program instructions and data, contains the main functions and Kalman filter, can be run directly

There are detailed notes, Principal component analysis of multivariate data analysis projection, GPS and INS navigation program.