Real-time fusion method for multichannel data of ground penetrating radar

Abstract

The invention discloses a real-time fusion method for multichannel data of a ground penetrating radar. The real-time fusion method for the multichannel data comprises the following steps that 1, band-pass filtering is conducted on radar data of each channel according to the antenna center frequency; 2, a system time zero point is determined, the data of the channels are rearranged and aligned; 3, an original point of a coordinate system is determined, and coordinate transformation is conducted on the observation data of each channel; 4, the comentropy of the data of each channel is worked out; 5, the weighted average fusion rule is adopted for fusion estimation; 6, a gain curve is calculated, and the gain is adjusted. By the adoption of the real-time fusion method for the multichannel data of the ground penetrating radar, real-time fusion is conducted on the data of the channels in the probe process of the ground penetrating radar, and all channel data information can be checked at a time just by displaying a fused data result on a radar screen. Compared with existing method that the data of the channels are checked through switching operation, the real-time fusion method is more easy and convenient and more visual. Meanwhile, the situations that due to the fact that the data of all the channels can be checked one by one, leak detection is caused, and misjudgment is made are avoided.

Description

technical field [0001] The invention relates to the field of ground-penetrating radar data processing, in particular to a method for real-time fusion of multi-channel data of ground-penetrating radar in the field. Background technique [0002] Ground-penetrating radar is a detection method that uses high-frequency radio waves to determine the distribution of substances inside the medium. If ground penetrating radar is used to detect an area of ​​interest, the area should be divided into equally spaced survey lines, and then equally spaced scans will be performed along each survey line, so as to realize the coverage detection of the entire area. In order to improve efficiency and reduce operational difficulty, multi-channel ground penetrating radar came into being. [0003] Using multi-channel ground-penetrating radar to scan once along the survey line can get multiple radar maps of the entire area, which realizes the detection of the same target at different frequencies or ...

AI Technical Summary

Problems solved by technology

[0004] (1) Due to the size limitation of the display, it is impossible to display all the radar maps at the same time, and can only be viewed separately

For isolated targets or abnormalities, only responding on some channels may miss detection

[0005] (2) The multi-channel data are independent of each other, and the data cannot be mutually confirmed and verified, and it is easy to misjudge

However, it cannot meet the real-time requirements, and it is difficult to determine its specific location, requiring a second scan

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