Method for merging resolutions of linear array three-dimensional imaging synthetic aperture radars

A synthetic aperture radar, three-dimensional imaging technology, applied in radio wave measurement system, radio wave reflection/re-radiation, using re-radiation, etc.
CN101614810AActive Publication Date: 2009-12-30四川电子科技大学教育发展基金会
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
四川电子科技大学教育发展基金会
Publication Date
2009-12-30

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Abstract

The invention provides a method for merging resolutions of linear array three-dimensional imaging synthetic aperture radars. The method adopts two linear array three-dimensional imaging synthetic aperture radars of which the motion trails are orthogonal to image the same region and then adopts an orthogonal spatial projection matrix technology to merge two obtained images, thereby generating a high-resolution linear array three-dimensional imaging synthetic aperture radar image. The method solves the problem that the cross track resolution of the linear array three-dimensional imaging synthetic aperture radar image is lower than the long track resolution of the linear array three-dimensional imaging synthetic aperture radar image. The method has the advantages of realizing the linear array three-dimensional imaging synthetic aperture radar high-resolution imaging by using a short array antenna and can be used in the fields of synthetic aperture radar imaging, earth remote sensing and the like.
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Description

technical field

[0001] The invention belongs to the technical field of radar, in particular to the technical field of synthetic aperture radar (SAR) imaging. Background technique

[0002] Linear array three-dimensional imaging synthetic aperture radar (LASAR) is a new type of synthetic aperture radar system that fixes the linear array antenna on a moving platform to synthesize a two-dimensional planar array and perform three-dimensional imaging. Linear array three-dimensional imaging synthetic aperture radar can realize the ability of imaging three-dimensional ground which cannot be realized by single-antenna synthetic aperture radar at present, and has become a research hotspot in the field of synthetic aperture radar. According to the inventor's understanding and published literature, for example: J.Klare, A.Brenner, J.Ender, "A New Airborne Radar for 3D Imaging-Image Formation using the ARTINO Principle-", EUSAR, Dresden, Germany, 2006. BAS SEM R. MAHAFZA, MITCH SAJJADI ...

Claims

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