Semi-aviation transient electromagnetic observation area design method
A technology of transient electromagnetic and design method, which is applied in the field of earth exploration, can solve the problems of semi-aerial transient electromagnetic exploration system without observation area and design scheme, and achieve the effect of ensuring accuracy and optimizing the division of areas
Active Publication Date: 2020-10-30
GUANGXI COMM PLANNING SURVEYING & DESIGNING INST +1
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[0004] At present, the development of semi-aerial transient electromagnetic method with grounded source is still in its infancy. For the observation area, most of them rely on experience to design the survey plan. For other geophysical electromagnetic survey methods using grounded wire source, such as CSAMT and LOTEM, etc. There is a targeted observation area design method, but there is still no targeted observation area design scheme for the semi-aerial transient electromagnetic survey system
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[0032] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
[0034] It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
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The invention provides a semi-aviation transient electromagnetic observation area design method. Attenuation rate distribution is calculated by using a transient electromagnetic forward modeling algorithm and a layered model; an observation area is divided into a suitable observation area and an unsuitable observation area, the optimal fitting elliptic curve is used for fitting the area boundary,and the semi-aviation transient electromagnetic field exploration area can be quickly divided into the suitable observation area and the unsuitable observation area. No longer rely solely on experience. Meanwhile, influence factors of two parameters of the source length and the burial depth are considered, the optimal fitting elliptic curve is used for fitting the boundary of the area, the dividedarea can be optimized, and the accuracy of division is guaranteed.
Description
technical field [0001] The disclosure belongs to the technical field of earth exploration, and relates to a method for designing a semi-aerial transient electromagnetic observation area. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] The semi-aerial TEM method places the excitation source on the ground, and uses a manned or unmanned aerial vehicle to mount the receiving device to collect the transient response. This working method makes the semi-aerial TEM method integrate the ground TEM method and The advantages of the airborne transient electromagnetic method are that it has the characteristics of high signal-to-noise ratio, flexibility and high efficiency, and large detection depth, and can adapt to geological and terrain conditions such as alpine regions, high-altitude mountainous areas, deserts, Gobi, forested areas, and karst devel...
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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 李敦仁孙怀凤张观树陈成栋毛承英杨洋骆俊晖叶琼瑶唐正辉甘力徐龙旺邓胜强
Owner GUANGXI COMM PLANNING SURVEYING & DESIGNING INST