Rectangular aperture telescope antenna of synthetic aperture laser imaging radar

A synthetic aperture laser, rectangular aperture technology, applied in telescopes, optics, optical components, etc., can solve the problems of reduced azimuthal resolution, inability to control separately, and uneven resolution.
CN101464516AActive Publication Date: 2009-06-24SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Publication Date
2009-06-24

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Abstract

The invention relates to a rectangular aperture telescope antenna for a synthetic aperture laser imaging radar, which comprises an objective lens pupil, an objective lens, an eye lens and an eye lens pupil. The objective lens pupil is positioned on the front focal plane of the objective lens; the eye lens pupil is positioned on the back focal plane of the eye lens; the objective lens pupil, the objective lens, the eye lens and the eye lens pupil have rectangular apertures; the focus of the objective lens is f1; the focus of the eye lens is f2; and the distance between the objective lens and the eye lens is f1 plus f2. The invention can generate a rectangular optical toe according with the scanning mode of the synthetic aperture laser imaging radar, eliminate the phenomenon of uneven imaging resolution and reduced resolution of the optical toe in the azimuth direction and the vertical motion direction, and design optimal scale of the rectangular apertures to respectively control the scale of the laser radar optical toe in the azimuth direction and the vertical direction motion, so as to obtain large scanning width and high azimuth direction resolution.
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Description

technical field

[0001] The invention relates to a synthetic aperture laser imaging radar, which is an optical telescope antenna with a rectangular aperture of a synthetic aperture laser imaging radar, used as an optical receiving and transmitting antenna, and can produce a rectangular optical toe conforming to the scanning mode of a synthetic aperture laser imaging radar, therefore Not only can it eliminate the phenomenon of uneven and reduced azimuth imaging resolution in the vertical direction of the movement of the optical toe, but it can also design the optimal rectangular aperture scale to control the azimuth and vertical directions of the laser radar optical toe, respectively. scale, resulting in large scan width and high azimuth resolution. Background technique

[0002] The principle of synthetic aperture laser imaging radar is taken from the principle of synthetic aperture radar in the radio frequency field, and it is the only optical imaging observation method that ...

Claims

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