Data processing method and apparatus for foundation synthetic aperture radar

A synthetic aperture radar and ground-based radar technology, which is applied in the field of radar communication and can solve the problems of slow scanning speed and large scanning beam angle.

Active Publication Date: 2019-04-09
INNER MONGOLIA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 apparatus for foundation synthetic aperture radar
  • Data processing method and apparatus for foundation synthetic aperture radar
  • Data processing method and apparatus for foundation synthetic aperture radar

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Embodiment Construction

[0027] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also 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, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0029] figure 1 An exemplary system architecture 100 that can be applied to the data processing method or data processing device for ground-based synthetic aperture radar according to the embodiment of the present application is shown.

[0030] like figure 1 As shown, the ...

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Abstract

The embodiment of the invention discloses a data processing method and apparatus for a foundation synthetic aperture radar, an electronic device, and a computer readable medium. The foundation synthetic aperture radar is constructed by causing a foundation radar to perform rectilinear motion along a rail. A plurality of virtual array element positions are arranged on the rail. A specific implementation manner of the method comprises the following steps: in response to determination of location at the virtual array element position at present, transmitting a frequency modulated continuous wavesignal to a monitored point target through a transmitting antenna; obtaining echo data of the monitored point target by using a receiving antenna; and in response to determining a terminal located onthe rail at present, processing the obtained echo data based on an imaging algorithm of a pseudo-polar coordinate system to generate a focusing image of the monitored point target. According to the embodiment, by adoption of the imaging algorithm of the pseudo-polar coordinate system, an interpolation process can be avoided, thereby being conducing to improving the processing efficiency of the data and realizing 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, device, 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 speed 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, using the relative motion of the radar and the target, the radar with a smaller real antenna aperture is synthesized into a larger equivalent antenna aperture by means of data processing, also known as synthetic aperture radar. Synthetic aperture radar has the characteristics of high resolution, can work around the clock, can effectively identify camouflage and penetrate cover and so on. This radar can obtain high-...

Claims

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Application Information

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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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