High-efficiency pre-imaging fusion method and system for borehole radar

A technology of borehole radar and fusion method, which is applied in radio wave measurement systems, radio wave reflection/re-radiation, and utilization of re-radiation, etc., to reduce the number of calculations, improve imaging accuracy, and improve application value.

Inactive Publication Date: 2020-04-17
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Description
  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of fusion of different system radar data imaging, improve imaging speed and data utilization

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  • High-efficiency pre-imaging fusion method and system for borehole radar
  • High-efficiency pre-imaging fusion method and system for borehole radar
  • High-efficiency pre-imaging fusion method and system for borehole radar

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Embodiment Construction

[0047] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments may be combined with each other without conflicting with each other.

[0048] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope of this description. Therefore, the protection scope of the present invention is not limited by the following disclosure. limitations of specific examples.

[0049] Use different types of borehole radar systems (single-base, double-base, MISO, MIMO, etc.) to sample the radar echoes of the surrounding medium, and establish multiple two-dimen...

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Abstract

The invention discloses a high-efficiency pre-imaging fusion method and a high-efficiency pre-imaging fusion system for a borehole radar. The method comprises the following steps: sampling a to-be-imaged space around a well hole by utilizing borehole radar systems of a plurality of systems, and storing radar echo data obtained by sampling in a plurality of two-dimensional data matrixes U1, U2,...UN-1, UN, UN+1,..., UM; removing direct wave signals and interference signals in the sampling data matrix Um (m=1, 2,..., M); initializing a three-dimensional data matrix D; performing dimension expansion processing on the sampling data matrix Um, and expanding the sampling data in the Um (m=1, 2,..., M) to the initialized three-dimensional data matrix D according to the space coordinate vector Tmcorresponding to the mth data matrix; and performing calculation to obtain a target space imaging result based on the three-dimensional data matrix D after data expansion. The method can solve the fusion problem during radar data imaging of different systems and improve the imaging speed and the data utilization rate.

Description

technical field [0001] The invention belongs to the technical field of radar imaging, and relates to a data fusion technology when a borehole radar images a target, in particular to a high-efficiency pre-imaging fusion method and system based on a borehole radar. Background technique [0002] Borehole radar is a kind of ground penetrating radar, which is widely used in engineering fields such as stratum analysis, hydrogeological research and mineral resources. Borehole radar imaging technology is the key technology to complete the above functions. However, due to the complex environment in the wellbore, the radar imaging system is often interfered by various factors, and a single type of radar imaging system is often unable to complete reliable imaging of the target. [0003] With the continuous development and progress of radar imaging technology, borehole radar can take multiple samples of the same well at different times through different detection methods. However, due ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/89G01S13/88G01S13/87
CPCG01S13/87G01S13/88G01S13/89
Inventor 杨海宁易诗佳李娜李廷军樊勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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