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Data processing method, device and system and storage medium

A data processing and data technology, applied in the information field, can solve the problems of SAR echo signal processing process failure and different movement rules, and achieve the effect of highly targeted and efficient processing

Active Publication Date: 2021-01-05
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology

This new working mode reflects the advantages of multi-antenna phase center system and azimuth beam scanning, but due to the inheritance of the signal processing methods of the two working modes, the movement law of the antenna phase center in the new working mode is different from that of the conventional The movement law of the antenna phase center in the multi-channel strip mode is different, which leads to the failure of the conventional azimuth multi-channel spaceborne SAR echo signal processing process

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  • Data processing method, device and system and storage medium
  • Data processing method, device and system and storage medium
  • Data processing method, device and system and storage medium

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[0068] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0069] It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0070] The present application relates to the field of information technology, and in particular to a data processing method, a data processing device, a data processing system and a computer-readable storage medium applied to a multi-channel sliding spotlight SAR system.

[0071] Azimuth multi-channel spaceborne SAR has excellent performance such as all-weather, all-time, long observation distance, high imaging resolution and wide mapping bandwidth. Azimuth multi-channel spaceborne SAR has different working modes. In practical applications, the azimuth multi-channel spaceborne SAR can switch t...

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Abstract

The invention discloses a data processing method, which is applied to a multi-channel sliding spotlight synthetic aperture radar (SAR) system, and comprises the steps of determining a phase model, wherein the phase model comprises a relative position relationship between an equivalent phase center and a phase reference point in the SAR system; performing phase compensation processing on the firstdata based on the phase model to obtain second data, wherein the first data represents baseband data corresponding to echo data received by the SAR system; performing spectral analysis processing on the second data in the azimuth direction to obtain third data; and obtaining a single-channel image of the SAR system based on the third data. The invention further discloses a data processing device and system and a storage medium.

Description

technical field [0001] The present application relates to the field of information technology, and in particular to a data processing method, device, system and computer-readable storage medium applied to a multi-channel sliding beamforming synthetic aperture radar (Synthetic Aperture Radar, SAR) system. Background technique [0002] Azimuth multi-channel spaceborne SAR has excellent performance such as all-weather, all-time, long observation distance, high imaging resolution and wide mapping bandwidth. Azimuth multi-channel spaceborne SAR has different working modes. The multi-channel sliding spotlight mode is a more novel working mode of the azimuth multi-channel spaceborne SAR, which can further improve the synthetic aperture time on the basis of the multi-channel strip mode, so that the imaging resolution can be better improved . This new working mode reflects the advantages of multi-antenna phase center system and azimuth beam scanning, but due to the inheritance of t...

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Application Information

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IPC IPC(8): G01S13/90
CPCG01S13/9023G01S13/9052G01S13/9054
Inventor 范怀涛张志敏禹卫东邓云凯王宇郑明洁
Owner AEROSPACE INFORMATION RES INST CAS
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