Clock difference compensation method and system based on receiver in Beidou dynamic positioning

A compensation method and receiver technology, applied in satellite radio beacon positioning system, radio wave measurement system, measurement device, etc., can solve problems such as few researches

Inactive Publication Date: 2020-02-04
深圳微品致远信息科技有限公司
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Problems solved by technology

However, domestic research on dynamic positioning, especially multi-target dynamic positioning is very little.
At the same time, due to the clock diffe

Method used

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  • Clock difference compensation method and system based on receiver in Beidou dynamic positioning

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] like figure 1 As shown, this example provides a clock error compensation method based on the receiver in Beidou dynamic positioning, including:

[0030] Step S1, collecting carrier phase observation data, performing differential filtering on the carrier phase observation value, and obtaining its phase variability as the Doppler observation value at this moment;

[0031] Step S2, constructing an equation through the Doppler observation value and the geometric position relationship between the satellite and the receiver, and solving the receiver velocity;

[0032] Step S3, calculating the real-time displacement through the speed of the receiver, and obtaining the baseline error compensation correction number through the integration of the speed with respect to time;

[0033] Step S4, performing clock error compensation on the...

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Abstract

The invention provides a clock difference compensation method based on a receiver in Beidou dynamic positioning. The clock difference compensation method includes the steps that step S1, carrier phaseobservation data are collected, differential filtering is carried out on a carrier phase observation value, and a phase change rate of a carrier is calculated as a Doppler observation value at the time; step S2, an equation is constructed through the Doppler observation value and a geometric position relationship between a satellite and the receiver to solve the receiver speed; step S3, the real-time displacement is solved by the receiver speed, and a baseline error compensation correction number is calculated by integrating of the speed on the time; and step S4, a Doppler speed measurement result is subjected to clock difference compensation through the baseline error compensation correction number to obtain a baseline solution result after compensation. The clock difference is compensated by using the BDS Doppler speed measurement result so as to obtain a more accurate baseline solution result, so that application requirements such as highly dynamic and multi-complex mobile formations are met.

Description

technical field [0001] The invention relates to a clock error compensation method, in particular to a clock error compensation method based on a Beidou dynamic positioning receiver, and to a clock error compensation system using the clock error compensation method based on a Beidou dynamic positioning receiver. Background technique [0002] With the in-depth integration of Beidou Satellite System (BDS) positioning technology with various industries, the conventional static and dynamic real-time dynamic differential positioning (RTK) technology can no longer fully meet the application requirements, and the dynamic relative dynamics of both the mobile station and the reference station ( Motion) positioning technology came into being, and the dynamic positioning of linked targets refers to the state that multiple moving objects maintain relative motion at the same time in a system, that is, multi-target dynamic positioning. Especially in applications such as aircraft, vehicle a...

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Application Information

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IPC IPC(8): G01S19/23
CPCG01S19/23
Inventor 周洪峰孙红星李石平
Owner 深圳微品致远信息科技有限公司
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