基于MATLAB的GPS周跳探测与修复

GPS cycle slip detection and repair based on MATLAB

在GPS观测过程中,信号会受到遮挡等原因发生跳变现象,引起很大误差甚至是粗差,为了解决这一问题,文中利用MATLAB软件,根据电离层残差法和Melbourne-Wübbena组合法的优缺点,结合这两种方法进行GPS载波相位观测值的周跳探测,然后根据周跳探测结果进行修复,结果表明:利用组合方法编制的MATLAB周跳探测与修复的程序能很好的探测和修复GPS周跳。

In the process of GPS observation,the signal would be obstructed and other reasons and occured the jump phenomena,which would cause the large errors or even the gross errors.In order to solve the problem,in this paper,MATLAB software was used,according to the advantages and disadvantages of the combination method with the ionospheric residual method and Melbourne-Wübbena,combining with two methods,the cycle slip detection of GPS carrier phase observation values was carried out,and then,according to the cycle slip detection results,the repair was carried out.Results showed that the MATLAB cycle slip detection and repair program compiled by the combined method could detect and repair the GPS cycle slip well.