Travel time data fast collecting method for geological radar wave velocity chromatography prospecting
A technology of geological radar and travel time data, applied in electromagnetic wave detection, radio wave measurement system, radio wave reflection/reradiation, etc., can solve the problems of low accuracy and low efficiency, and overcome the limitation of the number of receiving points , The operation is simple and effective, and the effect of meeting the requirements of the inversion parameters
Inactive Publication Date: 2015-03-11
CHINA UNIV OF MINING & TECH (BEIJING)
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[0004] The technical problem to be solved by the present invention is to provide a rapid acquisition method of travel time data for geological radar wave velocity tomography detection in view of the shortcomings of low accuracy and low efficiency in the prior art in the travel time data acquisition process of geological radar wave velocity tomography
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[0023] The present invention will be further described below in conjunction with accompanying drawing.
[0024] like figure 1 Shown is the flow chart of the rapid acquisition method of travel time data of geological radar wave velocity tomography in the embodiment of the present invention, which specifically includes the following steps:
[0025] S1. Laying out survey lines and measuring points: Lay out survey lines on both sides of the detection profile, specifying that one of them is the transmitting survey line and the other is the receiving survey line; the length l of the survey survey line is 10m and the vertical distance between the two survey lines w is 8m; select the detection direction, divide the emission survey line into 20 segments equidistantly, and mark the emission point Tr along the detection direction i , i=1,2,...,20, the emission point is located at the midpoint of each segment;
[0026] S2. Measure the delay time and measurement error of the geological r...
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The invention relates to a travel time data fast collecting method for geological radar wave velocity chromatography prospecting and belongs to the technical field of geophysical prospecting. The method includes the following steps of arranging measuring lines and measuring points; measuring geological radar machine delay time and system errors; conducting wave velocity chromatography prospecting under a time triggering mode; processing radar wave signals; extracting travel time data according to inversion parameters. By means of the method, fast and continuous collection of travel time data of the geological radar wave velocity chromatography prospecting is achieved, prospecting time is greatly reduced, corresponding travel time data can be extracted according to different inversion parameters, once prospecting can meet a diversified inversion standard, prospecting efficiency of geological radar chromatography imaging is improved, and the method facilitates improving of the accuracy of an inversion result.
Description
technical field [0001] The invention belongs to the technical field of geophysical detection, and relates to a rapid acquisition method of travel time data for geological radar wave velocity tomography detection. Background technique [0002] Geological radar technology is a fast, non-destructive and efficient geophysical detection technology, which has been widely used in mineral exploration, roadbed detection and environmental monitoring, mainly including reflected wave detection and wave velocity tomography detection. Among them, the detection distance of wave velocity tomography is more than twice that of reflection wave detection, and the detection accuracy is also higher. [0003] At present, the collection of travel time data in the wave velocity tomography detection method is realized through the point-by-point movement of the transmitting antenna and the receiving antenna. The number of movements of the receiving antenna is the product of the number of transmitting ...
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IPC IPC(8): G01V3/12G01S13/88
Inventor 杨峰杜翠郑晶许献磊杨超宇徐昕军余洋彭猛
Owner CHINA UNIV OF MINING & TECH (BEIJING)