组合导航的卡尔曼滤波器MATLAB程序，INS/GPS组合导航卡尔曼滤波，选择15项状态量，基于伪距和伪距率并采用紧耦合的耦合方式，实现了时间更新和数据更新，INS和GPS组合导航数据融合的过程，输出更精确的导航信息(Kalman filter MATLAB program of integrated navigation, Kalman filtering of INS/GPS integrated navigation, 15 state variables are selected, based on pseudo-range and pseudo-range rate and tightly coupled mode, the process of time update and data update, INS and GPS integrated navigation data fusion is realized, and more accurate navigation information is output.)