High-precision position-independent GNSS monitoring virtual reference method
A virtual reference and high-precision technology, applied in the field of GNSS monitoring, can solve the problems of high cost, small monitoring service area of physical reference station, poor monitoring effect, etc., and achieve good stability
Active Publication Date: 2019-09-20
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0005] In view of the above-mentioned deficiencies in the prior art, a high-precision position-independent GNSS monitoring virtual reference method provided by the present invention solves the problem of poor monitoring effect caused by the displacement of the physical reference station and the monitoring service area of the physical reference station in the existing GNSS monitoring method. Small, costly problems
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[0026] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.
[0027] Such as figure 1 As shown, the high-precision position-independent GNSS monitoring virtual reference method includes the following steps:
[0028] S1. Set up a monitoring station in the area to be monitored, obtain the location information of the area to be monitored or the monitoring station, and obtain its coordinates;
[0029] S2. Convert the above coordinate information into the format required by the enhanced l...
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The invention discloses a high-precision position-independent GNSS monitoring virtual reference method. The high-precision position-independent GNSS monitoring virtual reference method comprises the following steps of: S1, obtaining position information of an area to be monitored or a monitoring station, and obtaining coordinates of the area to be monitored or the monitoring station; S2, sending the coordinate information to an enhanced position server; S3, generating a virtual reference station by the enhanced position server according to the received information, keeping the position of the virtual reference station unchanged, and obtaining a virtual observation value of the virtual reference station; and S4, taking the virtual reference station as a monitoring reference station for differential positioning calculation with each GNSS monitoring station to obtain coordinates of each monitoring station relative to the position reference of the virtual reference station. The high-precision position-independent GNSS monitoring virtual reference method greatly improve the monitoring service area of a single GNSS reference station, and can avoid the situation that the error monitoring result is finally obtained due to the displacement of the reference station in the traditional GNSS monitoring, and has the better stability.
Description
technical field [0001] The invention relates to the field of GNSS monitoring, in particular to a high-precision position-independent GNSS monitoring virtual reference method. Background technique [0002] Global Navigation Satellite System (GNSS) is the collective name for various satellite navigation and positioning systems in the world. Several major positioning and navigation systems currently in operation include the GPS system of the United States, the GLONASS system of Russia, the Galileo system of the European Union, and the Beidou satellite navigation system of my country. GPS. GNSS positioning technology has attracted widespread attention due to its all-weather, global coverage and high-precision positioning, and has been widely used in surveying and mapping, aerospace, land transportation, exploration, timing, marine and military industries. [0003] The content of GNSS monitoring mainly includes horizontal displacement, vertical displacement and offset distance, t...
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Login to View More IPC IPC(8): G01S19/41G01S19/42
CPCG01S19/41G01S19/42
Inventor 黄丁发冯威赵亮
Owner SOUTHWEST JIAOTONG UNIV