关于导航定位中的卡尔曼滤波程序。X1，X2分别代表经过转换以后的位置X,Y轴的坐标。V1，V2为其相对应的速度。卡尔曼滤波可以使定位数据更加平滑。-Calman filtering program in navigation and positioning. X1, X2, respectively, after conversion to the position of the X, Y axis coordinates. V2, V

卡尔曼滤波，由笛卡尔坐标到极坐标的转换，并给出测量噪声的相关矩阵R的公式，MATLAB即可实现。（坐标系转化的推导文档）(Kalman filter, from Descartes coordinates to polar coordinates conversion, and gives the correlation matrix of measurement noise R formula, MATLAB can be achie

此程序是北斗精密单点定位的相关程序，其中包括坐标的转换，滤波以及各个误差模型的改正(This program is Beidou precise single-point positioning of the relevant procedures, including coordinate conversion, filtering and correction of the various error models)