An Integrity Analysis Method Based on Motion-to-Motion Relative Positioning Scenario

An analysis method and relative positioning technology, applied in satellite radio beacon positioning systems, instruments, measuring devices, etc., to achieve the effect of improving computing efficiency, meeting integrity requirements, and improving positioning accuracy

Active Publication Date: 2021-11-02
BEIHANG UNIV
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And the PCF must meet the integrity risk requirements

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  • An Integrity Analysis Method Based on Motion-to-Motion Relative Positioning Scenario
  • An Integrity Analysis Method Based on Motion-to-Motion Relative Positioning Scenario
  • An Integrity Analysis Method Based on Motion-to-Motion Relative Positioning Scenario

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[0090] The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

[0091] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0092] In order to make the content of the present invention more clearly described, at first the data source is described, as figure 2 Shown is a block diagram of the sample information exchange process in the embodiment of the present invention, the satellite 100 provides the collected ...

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Abstract

The present invention provides an integrity analysis method based on motion-to-motion relative positioning scene, comprising the following method steps: a) establishing a motion-to-motion relative positioning model, and inputting navigation data; b) solving the floating-point solution of the integer ambiguity ; c) cycle slip detection and repair based on the total electron content rate; d) correct repair probability calculation and wrong repair probability calculation for the whole cycle ambiguity; e) determine the fault to be detected and calculate the probability of satellite fault; f) calculate Standard deviation δ v|CF and position domain bias b m ; g) Calculating the integrity risk value of the carrier phase. The invention is beneficial to provide an algorithm for solving the ambiguity of the whole cycle for the motion-to-motion positioning system in the case of a long baseline, and then calculate and solve the integrity of the carrier phase.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to the technical field of integrity monitoring of dynamic-to-dynamic relative positioning by using carrier phase in satellite navigation. Background technique [0002] With the continuous development of high-precision positioning of the GNSS system, the demand for GNSS positioning in various industries continues to increase. The traditional dynamic real-time differential positioning technology (RTK) is widely used in "static and dynamic" occasions in engineering applications. But for "moving" occasions, it is necessary to solve the problem of high-precision relative positioning between two moving targets, and the original technology can no longer meet the needs of users. Therefore, the motion-to-motion differential positioning technology came into being. In mobile-to-mobile differential positioning, the position of the base station does not need to be known precisely, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/44
CPCG01S19/44G01S19/20G01S19/51
Inventor 王志鹏朱衍波候晓鹏方堃
Owner BEIHANG UNIV
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