Two-dimensional scanning passive millimeter-wave imaging system and method

A millimeter-wave imaging and two-dimensional scanning technology, which is applied in the use of millimeter waves for geological exploration, measurement devices, instruments, etc., can solve the problems of using a large number of radiometers, slow work efficiency, and narrow field of view, and reduce the number of used radiometers. , the effect of improving accuracy and reducing volume

Inactive Publication Date: 2019-12-03
HARBIN INST OF TECH
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Problems solved by technology

[0009] The purpose of the present invention is to propose a two-dimensional scanning passive millimeter-wave imaging system and method to solve the problems o

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  • Two-dimensional scanning passive millimeter-wave imaging system and method

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Embodiment Construction

[0049] 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.

[0050] refer to figure 1As shown, the present invention provides an embodiment of a two-dimensional scanning passive millimeter-wave imaging system, including an imaging system housing 3, a rotatable reflector 4, an ellipsoidal reflector 5, a servo system 6, a fixed reflector 7, a receiving With imaging system 8, acquisition system 9 and computer 10, wherein,

[0051] The imaging system casing 3 is used to transmit the wave for the rotatable refle...

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Abstract

The invention discloses a two-dimensional scanning passive millimeter-wave imaging system and method. The system comprises an imaging system housing, which is used for transmitting wave for a rotatable reflection plate, and shading light for the rotatable reflection plate, an ellipsoidal reflection surface, a fixed reflection plate and a receiving and imaging system; a servo system, which is usedfor driving the imaging system housing to rotate; the rotatable reflection plate, which is used for reflecting millimeter wave signals to the ellipsoidal reflection surface; the ellipsoidal reflectionsurface, which is used for reflecting the millimeter wave signals to the fixed reflection plate; the fixed reflection plate, which is used for reflecting the millimeter wave signals to the receivingand imaging system; the receiving and imaging system, which is used for receiving the millimeter wave signals and converting the millimeter wave signals into voltage signals; an acquisition system, which is used for receiving the voltage signals and converting the voltage signals into digital signals; and a computer, which is used for receiving the digital signals and processing the digital signals into images for display. According to the system, the scanning area is increased, the system size is reduced, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of millimeter wave imaging, in particular to a two-dimensional scanning passive millimeter wave imaging system and method. Background technique [0002] The passive millimeter-wave imaging system does not emit electromagnetic waves at all, and only recognizes the target by receiving the radiation of the object itself. Therefore, there are no disadvantages such as target flicker and human radiation. [0003] Traditional security inspection equipment includes metal detection systems, X-ray security inspection systems, etc. Obviously, the metal security inspection system can only detect metal objects, and cannot detect and identify non-metallic dangerous objects such as explosives and drugs. The X-ray security inspection system cannot be used to detect the human body because it is harmful to the human body. [0004] The authorized announcement number is CN206224001U utility model patent "omnidirectional security inspec...

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Application Information

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IPC IPC(8): G01V8/00
CPCG01V8/005
Inventor 邱景辉王楠楠闫龙邱爽
Owner HARBIN INST OF TECH
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