Reclamation soil plough layer moisture content prediction method based on detection radar

Abstract

The invention discloses a reclamation soil plough layer moisture content prediction method based on a ground penetrating radar. The method comprises the following steps: A, selecting sampling points and presetting radar parameters; B, measuring data by using the ground penetrating radar, and carrying out local sampling to obtain ground penetrating radar data; and C, preprocessing the acquired data. According to the scheme, firstly, the ground penetrating radar is used as a platform, a near-ground microwave remote sensing technology is used, the method has the advantages of large-range continuous detection, rapidness, no damage, low cost and the like, and the defects that a traditional measurement method is low in efficiency and causes damage to a soil body can be overcome; and secondly, according to a spectrum analysis method adopted by the invention, radar data is converted from a time domain to a frequency domain, and the characteristics of a signal change are analyzed from the angle of the frequency domain so that information such as energy distribution of the signal frequency domain under different media is analyzed, and the defects of a large wave velocity estimation error and manual interpretation of a layered surface in a traditional radar method are overcome.

Description

technical field [0001] The invention belongs to the field of land reclamation in coal mining subsidence land, more specifically, the invention relates to a method for predicting the water content of reclaimed soil plow layer based on ground penetrating radar. Background technique [0002] The development and utilization of mineral resources has promoted the development of human production and life, but with the mining of mineral resources, many problems have been exposed. The large amount of mineral resource mining has led to serious land damage and prominent conflicts in mining land. Now it is facing resource depletion. , severe damage to the landscape ecological environment, etc.; land reclamation is an effective way to realize the "harmonious coexistence between man and nature", and the distribution of soil moisture content in the reclaimed area is an important factor affecting the quality of reclamation, crop growth and ecological environment in the area. At present, the...

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Problems solved by technology

[0002] The development and utilization of mineral resources has promoted the development of human production and life, but with the mining of mineral resources, many problems have been exposed. The large amount of mineral resource mining has led to serious land damage and prominent conflicts in mining land. Now it is facing resource depletion. , severe damage to the landscape ecological environment, etc.; land reclamation is an effective way to realize the "harmonious coexistence between man and nature", and the distribution of soil moisture content in the reclaimed area is an important factor affecting the quality of reclamation, crop growth and ecological environment in the area. At present, the drying method is the most accurate method for measuring moisture content, but it is not suitable for large-scale implementation because it is time-consuming and labor-intensive and destroys the original soil structure. Ground penetrating radar can be used as a new type of near-ground microwave remote sensing technology, which has the advantages of large-scale continuous detection, fast, non-destructive, and low cost, and can make up for the inefficiency of traditional measurement methods and the lack of damage to soil

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