Underground ice layer detection method based on ice crystal anisotropy

A detection method and anisotropic technology, applied in the field of resource exploration, can solve problems such as easy misjudgment, unobvious stratification, and wrong composition of inversion targets, so as to solve the problem of misjudgment, discrimination accuracy and reliability high effect

Inactive Publication Date: 2014-05-14
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] However, when the subsurface permittivity changes continuously, or when the stratification is not obvious, misjudgment is likely to occur, and errors in the inversion of the target composition occur, so it is necessary to seek other water ice detection methods

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  • Underground ice layer detection method based on ice crystal anisotropy
  • Underground ice layer detection method based on ice crystal anisotropy
  • Underground ice layer detection method based on ice crystal anisotropy

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[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints.

[0017] In the process of realizing the present invention, the applicant of the present invention found through analysis that when the electromagnetic wave pass...

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Abstract

The invention provides an underground ice layer detection method based on ice crystal anisotropy. The method includes the steps of firstly, transmitting linear polarization electromagnetic waves to the underground place below a detection place; secondly, receiving echo signals of the linear polarization electromagnetic waves, judging that an underground ice layer exists in the detection place if the echo signals contain elliptic polarized waves, and judging that no underground ice layer exists in the detection plate if the echo signals do not contain elliptic polarized waves. Whether the underground ice layer exists in the detection place or not can be effectively detected according to the difference between the ice layer reflected wave polarized state and the sand layer reflected wave polarized state, the problem of misjudgment caused by the continuous change of the subsurface dielectric coefficient and unobvious layering is solved fundamentally, and therefore the distribution condition of the underground ice layer in the detecting place can be effectively judged.

Description

technical field [0001] The invention relates to the technical field of resource exploration, in particular to an underground ice detection method based on ice crystal anisotropy. Background technique [0002] There are no artificial facilities on the surface of Mars, and the crustal movement stopped 400 million years ago. Research on the detection of water bodies on Mars helps to understand the evolution history of the planet, whether there is life on Mars and the transformation of Mars is of great significance. [0003] In the existing technology, the microwave remote sensing inversion method is usually used to detect the subsurface ice layer of Mars, which mainly includes the following steps: the radar emits electromagnetic waves, receives the reflected waves from the surface and the subsurface layer, and extracts the surface layer and subsurface layer through the back-end processing technology. The dielectric coefficient of the subsurface, inverting whether the compositi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12
Inventor 张晓娟王辰方广有饶丽婷崔帅吴超王友成
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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