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Satellite positioning signal resolving method and device

A satellite positioning and positioning calculation technology, applied in the field of satellite positioning, can solve problems such as inaccurate detection of cycle slips, and achieve the effect of avoiding cumulative errors

Pending Publication Date: 2020-09-18
金华航大北斗应用技术有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly aims at the problem of inaccurate detection of cycle slips in the prior art, and invents a method and device for solving satellite positioning signals, which avoids the influence of IMU cumulative error on cycle slips, improves the accuracy of cycle slips, and thereby improves positioning accuracy

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  • Satellite positioning signal resolving method and device
  • Satellite positioning signal resolving method and device
  • Satellite positioning signal resolving method and device

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Embodiment 1

[0040] figure 1 As shown, a satellite positioning signal calculation method and device, wherein the satellite positioning signal calculation device includes an inertial measurement module, a calculation module, a comparison module, a positioning calculation module, and a position detection module.

[0041] The inertial measurement module is used to obtain the accelerometer measurement value; the calculation module is used to calculate the attitude information using the accelerometer measurement value; the calculation module is also used to calculate the acceleration of the mobile station using the attitude information and the accelerometer measurement value , calculating a cycle slip check amount according to the acceleration of the mobile station.

[0042] The comparison module is used to compare the threshold S and the cycle slip inspection amount. When the cycle slip inspection amount is less than S, the positioning solution module performs positioning calculation; when the...

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Abstract

The invention relates to a satellite positioning signal resolving method and device. The device comprises an inertia measurement module which is used for obtaining a measurement value of an accelerometer, a calculation module which is used for calculating attitude information by using the accelerometer measurement value, calculating the acceleration of a mobile station by using the attitude information and the accelerometer measurement value, and calculating the cycle slip test quantity by using the acceleration of the mobile station, a comparison module which is used for comparing the threshold value S with the cycle slip test quantity, and a positioning resolving module which is used for carrying out positioning resolving when the cycle slip test quantity is smaller than S. When the cycle slip test quantity is greater than S, the integer ambiguity of the positioning resolving module is reset, and positioning resolving is carried out. Aiming at the problem of inaccurate cycle slip detection in the prior art, the resolving method provided by the invention avoids the influence of IMU accumulated errors on the cycle slip, and improves the accuracy of the cycle slip, thereby improvingthe positioning precision.

Description

technical field [0001] The invention belongs to the technical field of satellite positioning, and in particular relates to a satellite positioning signal calculation method and device. Background technique [0002] In recent years, positioning methods based on GNSS (the Global Navigation Satellite System) have been widely used in various fields due to their high-precision positioning results. To obtain high-precision positioning results, GNSS carrier phase measurement values ​​are required, but in actual application scenarios Due to the interruption of satellite signals, low signal-to-noise ratio, low satellite altitude angle, dramatic changes in the ionosphere, and large multipath errors, the entire cycle count of GNSS carrier phase measurements is prone to jumps or interruptions. (i.e. cycle slip). The carrier phase measurement value is only available under the condition of correct detection and repair of cycle slips, and high-precision positioning results can be obtained...

Claims

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Application Information

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IPC IPC(8): G01S19/44G01S19/37G01S19/47
CPCG01S19/44G01S19/37G01S19/47Y02D30/70
Inventor 孙国良卓越东温丽芳张井合
Owner 金华航大北斗应用技术有限公司
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