Passive millimeter wave imaging system based on cylindrical beam
A millimeter-wave imaging and beam technology, applied in the field of passive millimeter-wave imaging systems, can solve problems such as low resolution, poor real-time performance of the system, and large system volume, and achieve high image resolution, strong real-time performance, and small system volume Effect
Inactive Publication Date: 2019-11-15
HARBIN INST OF TECH
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[0005] The purpose of the present invention is to solve the problems of poor real-time performance, low resolution, and large system volume of the existing system, and propose a channel-type passive system based on cylindrical beams with stronger real-time performance, more pixels, and clearer imaging. Millimeter Wave Imaging System
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] refer to Figure 1-Figure 2 As shown, the present invention provides a passive millimeter-wave imaging system based on cylindrical beams, including a left channel wall 1 and a right channel wall 2, both of which are made of wave-transparent materials, and The interior is hollow, and it is characterized in that the first plurality of radiometer lens combination arrays 3 and the first reflector 4 rotating along a fixed axis are arranged in the...
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The present invention discloses a passive millimeter wave imaging system based on a cylindrical beam, and belongs to the field of millimeter wave imaging. The passive millimeter wave imaging system comprises a left channel wall and a right channel wall; both the left channel wall and the right channel wall are made of a wave-transparent material, and the interior of the left channel wall and the right channel wall is hollow; a plurality of first radiometer lens combination arrays and a first reflecting plate rotating along a fixed shaft are arranged in the left channel wall; a plurality of second radiometer lens combination arrays and a second reflecting plate rotating along a fixed shaft are arranged in the right channel wall; the lens direction of the plurality of first radiometer lens combination arrays is opposite to the first reflecting plate; and the lens direction of the plurality of second radiometer lens combination arrays is opposite to the second reflecting plate. The systemprovided by the present invention has the advantages of strong real-time performance, a high image resolution, a small system size, and the like, and is especially applicable to the occasions of airports, customs and the like with a large traffic flow; and at the same time, the imaging system can be completely hidden in the channel wall, so that the discomfort of the tested person can be reduced.
Description
technical field [0001] The invention belongs to the field of millimeter wave imaging, in particular to a passive millimeter wave imaging system based on a columnar beam. Background technique [0002] With the development of the world economy, the international security situation is becoming increasingly severe, and terrorist attacks against public places such as airports and subway stations occur from time to time. In order to maintain public safety and ensure the normal travel of passengers, more effective security check methods are urgently needed. At present, the most commonly used technical means are metal detectors, and this kind of equipment only responds to metal objects, and at the same time requires the assistance of security inspectors to check, which is inefficient. The newly developed millimeter-wave imaging technology can form high-resolution human surface images on the premise of ensuring the safety of the inspected personnel, and has the ability to identify c...
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IPC IPC(8): G01V8/00
CPCG01V8/005
Inventor 邱景辉吴超郭晓雪王楠楠
Owner HARBIN INST OF TECH