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CORS site selection method based on checkerboard test

A checkerboard and site technology, applied in the field of CORS site selection based on checkerboard testing, can solve problems such as insufficient research preparation work, and achieve reliable reference value and significance, cost savings, and high reliability.

Pending Publication Date: 2022-02-01
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP +1
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Problems solved by technology

[0004] Traditional inversion studies of interseismic deformation using negative dislocations mostly focus on a fault zone, and the CORS stations used for inversion directly select sites on the blocks around the fault zone, which is blind to a certain extent, and the research preparation is not precise enough

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  • CORS site selection method based on checkerboard test
  • CORS site selection method based on checkerboard test
  • CORS site selection method based on checkerboard test

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with specific embodiments.

[0032] Based on the Cors Site Selection Method of Chess Test, Based on the DEFNODE negative mode inversion program, set multiple simulation sites from the same distance from the fault zone, using the checkerboard test method to perform positive inversion experiments, and perform different distances Sensitive test, the specific steps are as follows:

[0033] 1. Get the direction of travel of the feature node to be studied, forming the Shape format file.

[0034] 2. Set a series of CORS sites from different distances from breaks to get a series of virtual CORS site latitude and longitude, the specific steps are as follows:

[0035] 1) Simplify the fracture belt Shape file in the GIS software to form a simplified fracture belt line segment;

[0036] 2) In the GIS software, a plurality of virtual line segments are selected from the sides of the fault strap; the geometry of the vi...

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Abstract

The invention discloses a CORS site selection method based on a checkerboard test. In a traditional inter-earthquake deformation research, a CORS site for inversion is selected from a site on a block around a fault zone, and blindness is achieved. The method comprises the following steps: symmetrically selecting a plurality of virtual line segments on two sides of a fault zone by utilizing GIS software; selecting a plurality of feature points on the virtual line segments as simulated CORS sites; arranging two rows of nodes in the trend and inclination direction of the fault zone; adopting a DEFNODE negative dislocation inversion program for carrying out forward and reverse checkerboard testing, wherein the smaller the color difference of checkerboard black and white grey-scale maps is, the higher the resolution of a testing node model to CORS site data and the reliability degree of inversion are, and the testing node model serves as a point selection basis. Research results of the method provide important reference and reference for seismic fault activity researchers in the fault point distribution process, and the expensive cost for constructing CORS sites is saved.

Description

Technical field [0001] The present invention belongs to the field measurement and earth dynamics and seismographic research in the field of anti-intervals, which specifically relates to a Cors Site Selection Method Based on Chess Test. Background technique [0002] GNSS technology is widely used in data acquisition and high observation, wide range of reliability, wide range of observations, all-weather, real-time, in addition to this, in addition to the seismology, Earth dynamics, geophysics, geology and other disciplines. With the continuous improvement of multi-mode reinforcement systems, and GNSS monitor global sector movement, regional shell-shaped transformation, and inverse earthquake risk, etc. developing. [0003] For seismic risk, especially the gestation phase of the earthquake, McCaffrey et al. Developed a DEFNODE negative orientation specifier specifically for inversion of the earthquake, using a continuous operation of the reference station CORS (Continuous Operating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F111/04G06F111/12
CPCG06F30/20G06F2111/04G06F2111/12
Inventor 周东卫武瑞宏汤伟尧张波张良会张永刚吕菲
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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