Surveying and mapping band imaging method and device based on double-antenna SAR wide transmission and two narrow reception

A dual-antenna, surveying-strip technology, applied in the field of surveying-strip imaging, can solve problems such as mutual interference between antennas

Pending Publication Date: 2021-02-19
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology

[0004] At present, the traditional transceiver mode used in the working state of the dual-antenna interferometric SAR satellite system has the problem of mutual interference betwe

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  • Surveying and mapping band imaging method and device based on double-antenna SAR wide transmission and two narrow reception
  • Surveying and mapping band imaging method and device based on double-antenna SAR wide transmission and two narrow reception
  • Surveying and mapping band imaging method and device based on double-antenna SAR wide transmission and two narrow reception

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Embodiment Construction

[0046] In order to understand the characteristics and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present application.

[0047] In the description of the embodiments of the present application, it should be noted that unless otherwise stated and limited, the term "connection" should be understood in a broad sense, for example, it can be an electrical connection, it can also be the internal communication of two components, and it can be a direct connection , can also be indirectly connected through an intermediary, and those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0048] It should be noted that the term "first\second...

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Abstract

The embodiment of the invention discloses a surveying and mapping band imaging method based on double-antenna SAR wide transmission and two narrow reception. The method comprises the steps of receiving a surveying and mapping instruction for a target region which comprises a first region and a second region adjacent to each other, transmitting a measurement signal to the target region through a first antenna, receiving a first echo signal of the first region through the first antenna, receiving a second echo signal of the second region through a second antenna, respectively imaging according to the first echo signal and the second echo signal to obtain a first surveying and mapping image and a second surveying and mapping image, and determining a surveying and mapping image of the target region according to the first surveying and mapping image and the second surveying and mapping image. The embodiment of the invention further discloses a surveying and mapping band imaging device basedon double-antenna SAR wide transmission and two narrow reception.

Description

technical field [0001] This application relates to the overall technical field of spaceborne synthetic aperture radar, and in particular to a method and device for mapping swath imaging based on dual-antenna SAR wide transmission and two narrow reception. Background technique [0002] The dual-antenna interferometric synthetic aperture radar (Synthetic Aperture Radar, SAR) satellite can realize all-weather, all-weather land and ocean monitoring, and the high-precision digital elevation model (Digital Elevation Model, DEM) data obtained by it is an important geographical basic spatial information. The space-borne dual-antenna interferometric synthetic aperture radar (Interferometric Synthetic Aperture Radar, InSAR) system includes the main and secondary antennas, antenna support arm, baseline measurement system and beam alignment system, etc. Coherent, with the advantages of data interference model and high quality. It can form a commercial coverage of domestic DEM, widely ...

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Application Information

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IPC IPC(8): G01S13/90
CPCG01S13/9023G01S13/9054
Inventor 王春乐杨震禹卫东王宇邓云凯
Owner AEROSPACE INFORMATION RES INST CAS
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