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Fuzzy coverage area processing method, device, equipment and computer-readable storage medium

A technology of coverage area and processing method, applied in the field of image processing, can solve problems such as suppressing azimuth blur, and achieve the effects of fast calculation speed, high processing real-time requirements, and good coverage and reproduction effect.

Active Publication Date: 2021-08-13
BEIHANG UNIV
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  • Application Information

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Problems solved by technology

There is currently no effective way to suppress azimuth ambiguity perfectly

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  • Fuzzy coverage area processing method, device, equipment and computer-readable storage medium
  • Fuzzy coverage area processing method, device, equipment and computer-readable storage medium
  • Fuzzy coverage area processing method, device, equipment and computer-readable storage medium

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Embodiment Construction

[0093] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0094] The purpose of the embodiments of the present invention is to provide a method for processing blurred coverage areas in order to improve the reproduction effect of the blurred coverage areas in order to solve the problem in the related art that azimuth blurring has a serious impact on the original imaging scene. The method provided by the embodiment of the present invention takes the image of the main target area in the original image as the image to be processed, constructs the analog image signal through the amplitude reconstruction matrix, and shifts the constructed analog image signal to the original image through the azimuth displacement matrix Th...

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Abstract

The present disclosure relates to a method, device, equipment and computer-readable storage medium for processing fuzzy coverage areas. The method includes: converting the image signal to be processed into the frequency domain to obtain an initial frequency domain signal; obtaining an amplitude reconstruction matrix according to the original target antenna pattern function and the fuzzy target antenna pattern function; according to the amplitude reconstruction matrix, performing amplitude reconstruction processing on the initial frequency domain signal; performing azimuth displacement processing on the frequency domain signal after the amplitude reconstruction processing according to a preset azimuth displacement matrix; The frequency domain signal is converted to the time domain to obtain an analog image signal; the analog image signal is canceled with the original image signal to obtain a deblurred image signal, and the image signal to be processed is obtained according to the original image signal of.

Description

technical field [0001] The present disclosure relates to the field of image processing, and in particular, to a method, device, equipment, and computer-readable storage medium for processing blurred coverage areas. Background technique [0002] Synthetic Aperture Radar (SAR) is a high-resolution remote sensing radar that can observe the earth. Because spaceborne SAR can overcome the influence of rain, fog and dark night conditions, and realize all-day and all-weather earth observation, spaceborne SAR has broad application prospects in the fields of agriculture, ocean, disaster monitoring, and 3D mapping. [0003] In the actual space-borne SAR system, the entire Doppler bandwidth of the target is extremely large, but due to the limitation of the overall wave position design and data rate, the pulse repetition frequency cannot cover the entire bandwidth, so in the echo received by the satellite , the Doppler signal beyond the pulse repetition frequency will appear antifold, a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T5/10
CPCG06T5/003G06T5/10G06T2207/10044
Inventor 杨威高原陈杰王凯
Owner BEIHANG UNIV