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Data processing method and device for ground-based synthetic aperture radar

A technology of synthetic aperture radar and ground-based radar, which is applied in the field of radar communication, can solve the problems of large scanning beam angle and slow scanning speed, and achieve the effects of simplifying the processing process, reducing the amount of data, and improving processing efficiency

Active Publication Date: 2022-07-12
INNER MONGOLIA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The length of its azimuthal synthetic aperture is often only a few meters long, but the scanning beam angle is relatively large
In addition, its scanning speed tends to be relatively slow compared to airborne and spaceborne SAR

Method used

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  • Data processing method and device for ground-based synthetic aperture radar
  • Data processing method and device for ground-based synthetic aperture radar
  • Data processing method and device for ground-based synthetic aperture radar

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Embodiment Construction

[0027] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0028] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0029] figure 1 An exemplary system architecture 100 of the data processing method or data processing apparatus for ground-based synthetic aperture radar to which embodiments of the present application may be applied is shown.

[0030] l...

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Abstract

The embodiments of the present application disclose a data processing method, apparatus, electronic device, and computer-readable medium for ground-based synthetic aperture radar. The ground-based synthetic aperture radar is composed of the ground-based radar moving in a straight line along the track. Among them, a plurality of virtual array element positions are set on the track. A specific embodiment of the method includes: in response to determining that the current position of the virtual array element is located, transmitting an FM continuous wave signal to the target of the monitored point through a transmitting antenna; and obtaining echo data of the target of the monitored point through a receiving antenna; In response to determining the terminal currently located in the orbit, the acquired echo data is processed based on the imaging algorithm of the pseudo-polar coordinate system to generate a focused image of the monitored point target. By using the imaging algorithm of the pseudo-polar coordinate system in this embodiment, the interpolation process can be avoided, thereby helping to improve the data processing efficiency and realize real-time imaging.

Description

technical field [0001] The embodiments of the present application relate to the technical field of radar communication, and in particular, to a data processing method, apparatus, electronic device, and computer-readable medium for ground-based synthetic aperture radar. Background technique [0002] Synthetic Aperture Radar (SAR) uses a small antenna to move at a constant velocity along the trajectory of a long linear array and radiate coherent signals, and coherently process the echoes received at different positions to obtain higher-resolution imaging. radar. That is, by using the relative motion between the radar and the target, the real antenna aperture with a smaller size is processed by the method to synthesize a radar with a larger equivalent antenna aperture, also called a synthetic aperture radar. Synthetic aperture radar has the characteristics of high resolution, all-weather operation, and effective identification of camouflage and penetrating cover. This radar c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/90G01S7/41
CPCG01S7/41Y02A90/10
Inventor 徐伟李晓红谭维贤黄平平乞耀龙
Owner INNER MONGOLIA UNIV OF TECH
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