GPS伪距差分解算改进模型的研究

差分GPS定位技术是通过基站与移动站之间的空间相关性，来消除公共误差部分，以提高定位精度。伪距差分是目前用途最广的一种定位技术，文章详细列出了GPS伪距差分解算模型的数据处理算法，对于伪距差分中的有关问题提出了改进模型，该模型降低了对基准站接收机时钟的要求。由于基准站的精确坐标已经知道，在计算卫星坐标时，要计算接收机钟差，因此基准站的接收机钟差可以精确获得。

Research on improved model with GPS pseudorange differential analysis

Differential GPS can eliminate the common error to improve the positioning precision by a spatial correlation between the base station and the mobile station. The pseudorange differential is a kind of GPS technology being used extensively, and the algorithm of its data processing is listed. At the same time, an improved model with pseudorange differential analysis is discussed , which can reduce the clock demand level of receiver to benchmark station. The accurate coordinates of base station is known, when the coordinates of satellites being calculated, the clock error of receiver can be calculated, the clock error of receiver of the base station can be exactly obtained.