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Multi-polarization-mode combined array type ground penetrating radar antenna and control method thereof

A technology of radar antenna and ground penetrating radar, which is applied in the direction of antenna, antenna array, antenna grounding switch structure connection, etc., can solve the problems of large size, complicated manufacturing process, and limited GPR application range

Pending Publication Date: 2021-03-30
YUNNAN AEROSPACE ENG GEOPHYSICAL SURVEY INSPECTION
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Problems solved by technology

[0005] This measurement method does not take into account the influence of the polarization mode of the dipole antenna on the measurement results, so the accuracy is limited
In order to obtain more polarized signal measurement data, the existing GPR antenna generally chooses to abandon the traditional dipole antenna technology, for example, use a helical antenna (CN 104280719) or a Vivaldi antenna (CN 101976767), etc., this type of antenna The design and manufacturing process is complicated, and the size is large, and the instrument is easily damaged, which limits the scope of use of this type of GPR

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  • Multi-polarization-mode combined array type ground penetrating radar antenna and control method thereof
  • Multi-polarization-mode combined array type ground penetrating radar antenna and control method thereof
  • Multi-polarization-mode combined array type ground penetrating radar antenna and control method thereof

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Embodiment Construction

[0062] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0063] The present invention provides an array ground-penetrating radar antenna combined with multi-polarization modes and its control method. Multiple sets of planar butterfly antennas are arranged horizontally and vertically in a staggered manner to form a radar antenna array, which can obtain 4 antennas in one measurement. The effects of the measurement data of the two polarization modes can be improved by weighting and comprehensive calculation of the measurement data of the four polarization modes; the design scheme is simple and effective, and retains the advantages...

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Abstract

The invention provides a multi-polarization-mode combined array type ground penetrating radar antenna and a control method thereof. The multi-polarization-mode combined array type ground penetrating radar antenna comprises an electric insulation plate base, a radar antenna array fixed to the electric insulation plate base, an antenna switch assembly and a radar host. The radar antenna array comprises six rows of radar antenna groups which are respectively a first row of radar antenna groups, a second row of radar antenna groups,..., and a sixth row of radar antenna groups. And the polarizationdirection of each radar antenna group is set. The antenna has the advantages that rich measurement results of each polarization mode in each measurement mode can be realized only by controlling the switch of each radar antenna, selecting the two corresponding radar antenna groups matched with the polarization modes and switching the states of the selected radar antenna groups, and rich measurement results of each polarization mode in each measurement mode can be realized. According to the invention, 3D measurement is effectively combined with the multi-polarization component of the dipole antenna, so that the effect of obtaining rich measurement data through one-time measurement is realized, and the precision and the breadth of a measurement result are improved.

Description

technical field [0001] The invention belongs to the technical field of ground-penetrating radar antenna systems, and in particular relates to an array-type ground-penetrating radar antenna combined with multi-polarization modes and a control method thereof. Background technique [0002] Ground Penetrating Radar (GPR) is an efficient, non-destructive geophysical device that can realize long-range detection of target media. Its working principle is: GPR uses a broadband antenna to emit high-frequency electromagnetic pulses. After the high-frequency electromagnetic pulses are reflected, refracted and absorbed in the underground medium, the measured received signals can realize the electrical parameter imaging of the detection area. , and is mainly used to detect and analyze the underground medium structure, the change of physical parameters and the appearance of pores or cracks. Due to its high precision, fast efficiency, continuous non-destructive, real-time imaging and other...

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Application Information

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IPC IPC(8): G01S7/02H01Q1/38H01Q1/50H01Q21/00
CPCH01Q21/00H01Q1/38H01Q1/50G01S7/02Y02A90/30
Inventor 杨曦封晓黎郭永辉刘立权李航
Owner YUNNAN AEROSPACE ENG GEOPHYSICAL SURVEY INSPECTION
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