Time service positioning system based on Beidou system, and time service positioning method

The invention discloses a time service positioning system based on a Beidou system. The system comprises a ranging signal response module for receiving a ranging signal forwarded by a satellite, and sending out a response signal; a response signal preprocessing module for preprocessing the received response signal and improving a signal-to-noise ratio of the response signal; a positioning resolving module for resolving the location information according to the response signal; a database module for recording operational data of the response signal preprocessing module and the positioning resolving module; and a location calibration module for calling the operation data of last two positioning processes from a database module, and calibrating the location information performing the positioning resolving. The disadvantage of the prior art can be improved, and the time service positioning precision of a Beidou navigation system is improved. 本发明公开了一种基于北斗系统的授时定位系统，包括测距信号应答模块，用于接收卫星转发的测距信号，并发出应答信号；应答信号预处理模块，用于对接收到的