Research of Precise Timing in Single Receiver Pseudorange Positioning Based on GPS System

Timing service is one of the significant basic services in GPS system. Principles and mathematical models of the precise timing in single station pseudorange positioning were provided in this paper. And the automatic batch of timing procedures was developed through the C++ language. The experimental results show that, the precision of timing in single station pseudorange positioning based on GPS system can reach nanosecond level. In addition, the precision can be higher when using carrier smoothing pseudorange method. The precise timing services in GPS system has broad prospect in communications, electric power and other industries.