Hough transformation based ground penetrating radar target extraction method and device
A target extraction, ground penetrating radar technology, applied in radar signal processing and digital image processing, ground penetrating radar underground target recognition and extraction fields
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Embodiment 1
[0107] figure 1 It is a flow chart of a method for extracting ground-penetrating radar targets based on Hough transform provided by the present invention. Such as figure 1 Shown, a kind of ground-penetrating radar target extraction method based on Hough transform described in the present invention, obtains N column A-Scan echo signals to form two-dimensional gray scale image B-Scan, then obtains by analyzing and processing the data of B-Scan The target location information specifically includes the following steps:
[0108] Step S1, preprocessing and normalizing the acquired N columns of A-Scan echo signal data;
[0109] Step S2, sliding translation filtering;
[0110] Step S3, determining the peak and valley of the modulus maximum value;
[0111] Step S4, extracting a hyperbola based on Hough transform;
[0112] Step S5, calculating the position of the measured object.
[0113] The invention solves the related problems of ground penetrating radar target extraction and r...
Embodiment 2
[0178] The device embodiment 2 and the method embodiment 1 of the present invention belong to a unified technical concept. Please refer to the method embodiment 1 for details not described in detail in the device embodiment 2.
[0179] Figure 10 : the structure diagram of a ground penetrating radar target extraction device based on Hough transform provided by the invention. Such as Figure 10 As shown, a ground penetrating radar target extraction device based on the Hough transform of the present invention is used to obtain N columns of A-Scan echo signals to form a two-dimensional grayscale image B-Scan, and then analyze and process the B-Scan The data to obtain the target location information, specifically including the following units:
[0180] A data preprocessing unit, used for preprocessing and normalizing the acquired N columns of A-Scan echo signal data;
[0181] A filtering and denoising unit, used for sliding translation filtering;
[0182] The peak and valley a...
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