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A synthetic aperture imaging optimization processing method and device for through-wall radar

A through-the-wall radar and synthetic aperture technology, which is applied in the direction of measuring devices, using re-radiation, radio wave reflection/re-radiation, etc., can solve the problems of inability to filter out, complex implementation, high cost, etc., and achieve fast operation speed and reduced The effect of false alarm rate and curve smoothing

Active Publication Date: 2022-06-28
HUNAN NOVASKY ELECTRONICS TECH
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Problems solved by technology

However, the above radar processing method is based on the multipath mechanism to achieve multipath suppression, which needs to rely on model analysis and a large number of calculation processes. The implementation is complex, costly and inefficient. False alarms caused by clutter such as elliptical lines in BP imaging

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  • A synthetic aperture imaging optimization processing method and device for through-wall radar
  • A synthetic aperture imaging optimization processing method and device for through-wall radar
  • A synthetic aperture imaging optimization processing method and device for through-wall radar

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Embodiment Construction

[0044] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0045] like figure 1 As shown, the steps of the synthetic aperture imaging optimization processing method for through-wall radar in this embodiment include:

[0046] S1. Echo signal acquisition: use the through-wall radar to detect the target area, and obtain multi-channel echo signals;

[0047]S2. Multi-channel coherent imaging: the echo domain signals of each channel in the multi-channel echo signal are respectively imaged and coherently superimposed to obtain image domain data;

[0048] S3. Image domain focusing optimization: focus processing is performed on the image domain data to focus the energy of the target area once, and the optimized image domain data output is obtained.

[0049] In this embodiment, the through-wall radar echo signals are obtained by ...

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Abstract

The invention discloses a synthetic aperture imaging optimization processing method and device for through-wall radar. The steps of the method include: S1. using the through-wall radar to detect the target area to obtain multi-channel echo signals; S2. In the echo signal, the echo domain signals of each channel are respectively imaged and coherently superimposed to obtain the image domain data; S3. Perform focusing processing on the image domain data to focus the energy of the target area once, and obtain an optimized image domain data output; the device includes an echo signal acquisition module, a multi-channel coherent imaging module and an image domain focus optimization module. The invention has the advantages of simple implementation method, real-time suppression of clutter in the through-wall radar synthetic aperture image, reduction of false alarm rate and no loss of target energy, and the like.

Description

technical field [0001] The present invention relates to the technical field of through-wall radar, in particular to a synthetic aperture imaging optimization processing method and device for through-wall radar. Background technique [0002] Through the wall radar using the penetrability and transmission characteristics of electromagnetic waves, it can detect the area behind the wall through non-metallic media such as walls. Therefore, it is widely used in military and civilian fields such as urban street fighting, anti-terrorism struggle, and post-disaster rescue. During the detection process, in the image obtained by the traditional algorithm such as Back Projection (BP), there will still be some clutter around the target, which is easy to cause false alarms, and the signal curve of the image is not smooth. There is a lot of interference caused by glitch signals, which affects the accurate detection and judgment of targets in buildings. Therefore, it is necessary to optimi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/90G01S13/88
CPCG01S13/888
Inventor 杨博唐良勇龚赟胡俊王生水韩乃军韩明华
Owner HUNAN NOVASKY ELECTRONICS TECH
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