载波相位测量在高精度导航信号监测接收数据处理中的应用

The application of carrier phase measurement in data processing of high-accuracy navigation signal monitoring and receiving

在GPS广域差分系统中,参考站需要进行高精度导航信号监测接收,并获得良好的伪距观测数据。载波相位测量由于其测量精度高且观测噪声小,因此在伪距观测数据处理方面,发挥了重要作用。介绍了载波相位测量在高精度导航监测接收的伪距观测数据处理方面的具体应用,提出了一种综合利用三频电离层残差和载波相位变化率,来实时可靠地检验并修复周跳的方法。

The reference station needs to monitor and receive the high-accuracy navigation signal in the wide area DGPS, and to get more accuracy data of pseudo-range observation. Because of its high-accuracy measurement and low observation noise, the carrier phase measurement plays an important role in the data processing of pseudo-range observation. In this paper, the application of data processing of pseudo-range observation in the high-accuracy navigation signal monitoring and receiving is introduced. A method which can reliably detect and repair cycle slip in real-time by synthetically using the ionospheric residual of three frequencies and the change rate of carrier phase is proposed.