Method and system for generating virtual reference station based on triangular approximation algorithm

A technology of virtual reference station and generation system, applied in radio wave measurement systems, measurement devices, instruments, etc., can solve problems such as impossible to achieve high accuracy, no use of mobile stations, etc., and achieve the effect of accurate real-time calculation

Inactive Publication Date: 2010-03-03
夏晓清 +2
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The data provided by this differential station is only the approximate data of the area where it is located. The data received anywhere in thi

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  • Method and system for generating virtual reference station based on triangular approximation algorithm
  • Method and system for generating virtual reference station based on triangular approximation algorithm
  • Method and system for generating virtual reference station based on triangular approximation algorithm

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[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.

[0024] In the present invention, when the mobile station needs high-precision positioning, the wireless communication network is used to send the currently received GPS positioning data to the control center in real time, and the control center uses a triangle approximation algorithm to calculate the coordinates of the virtual reference station according to the current position of the mobile station position, and generate the approach track record of the intermediate point, and then calculate the differential correction data of the virtual reference station according to the differential ...

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Abstract

The invention relates to the field of satellite positioning application, and provides a method and a system for generating a virtual reference station based on a triangular approximation algorithm. The method comprises the following steps that: A, a mobile station sends current GPS positioning data to a control center in real time through a wireless communication network; B, the control center calculates a coordinate position of the virtual reference station by using the triangular approximation algorithm according to the current position of the mobile station, and generates approximation track record; and C, the control center calculates differential correction data of the virtual reference station according to the differential correction data of a reference station and the approximationtrack record of the virtual reference station. The method and the system calculate the coordinate position of the virtual reference station by using the triangular approximation algorithm and calculate the differential correction data of the virtual reference station by using the approximation track record, thereby realizing accurate real-time calculation of the virtual reference station.

Description

1. Technical field [0001] The invention relates to the field of satellite positioning applications, and more specifically, to a method and system for generating a virtual reference station. 2. Background technology [0002] Currently, the Global Positioning System (Global Position System, GPS) technology is widely used in many fields. At present, ordinary user stations can only receive free GPS signals, and the accuracy is only a few meters, and the GPS signal is a weak signal. The external interference will cause the GPS signal strength to be greatly reduced, and the positioning accuracy will also be reduced. In order to improve the positioning accuracy, it can be realized through other auxiliary information. In terms of using auxiliary information to improve positioning accuracy, one approach in the prior art is to provide differential correction data through a wide-area differential station. This differential station is evenly distributed in various places, collects GPS...

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Application Information

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IPC IPC(8): G01S5/02
Inventor 夏晓清冯振明陆明泉
Owner 夏晓清
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