Relative positioning device for satellite navigation and carrier phase cycle-slip repairing method of device

Abstract

The invention provides a relative positioning device for satellite navigation and a carrier phase cycle-slip repairing method of the device. A satellite navigation antenna on a base station receives a navigation signal, outputs ephemerides and observed quantities of all satellites through a satellite navigation receiver and sends the ephemerides and the observed quantities to a mobile station; the mobile station receives data sent by the base station and outputs the data to a comprehensive information processing module, a satellite navigation antenna on the mobile station receives the navigation signal and outputs the ephemerides and the observed quantities of all the satellites through the satellite navigation receiver, the comprehensive information processing module performs gross error processing on data output by the base station and the mobile station, carrier phase cycle-slip detection and repairing are finished, a double-difference observation equation is established through carrier phase double-difference processing, the whole-cycle ambiguity is resolved, and relative positioning information is output. With the adoption of the device and the method, the cycle-slip can be detected and repaired in real time, outliers can be marked out in real time, meanwhile, the cycle-slip occurrence frequency can be determined, high-precision relative positioning can be realized, and the availability of a system is guaranteed.

Description

technical field [0001] The invention relates to a satellite navigation relative positioning device and a method for repairing carrier phase cycle slip thereof, belonging to the field of satellite navigation carrier phase high-precision relative positioning. Background technique [0002] The development trend of satellite navigation shows that dynamic positioning will have a wider application world than static positioning. The dynamic relative positioning of high-precision satellite navigation adopts the carrier phase measurement technology. During the continuous carrier phase measurement process, the whole cycle number of the carrier phase observation value suddenly jumps due to the receiver losing lock or the signal is blocked. Jumping will destroy the law of carrier continuity, causing a systematic gross error in the observed value, and reducing the positioning accuracy. In essence, the detection and repair of cycle slips is how to find and correct such systematic gross e...

AI Technical Summary

Problems solved by technology

For example, the high-order difference method is mainly used for the detection and repair of large cycle slips; while the polynomial fitting method increases with the increase of the time series, the error accumulation will make the difference between the fitted value and the actual observed value larger and larger, making it impossible to perform Cycle slip detection and repair, etc.

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