Multi-input multi-output antenna array arrangement for active millimeter wave security check imaging and human body security check equipment and method
A multi-transmission, multi-receive, human body security inspection technology, which is applied in the use of millimeter waves for geological detection, optical-based geological detection, radio wave reflection/re-radiation, etc. It can solve the problem of long image reconstruction time and slow calculation speed of back projection algorithm. and other problems, to achieve the effect of improving engineering feasibility, improving data acquisition speed and antenna unit utilization, and improving imaging speed.
Pending Publication Date: 2021-07-16
NUCTECH CO LTD +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although this antenna layout method can reduce the number of antennas, due to the large distance between the equivalent phase center and the transceiver antenna, only the back projection algorithm can be used, and the back projection algorithm has a slow calculation speed and a long image reconstruction time
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] While the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will be described herein in detail. It should be understood, however, that the accompanying drawings and detailed description are not intended to limit the disclosure to the precise form disclosed, but on the contrary, are intended to cover what falls within the spirit and scope of the disclosure as defined by the appended claims All modifications, equivalents and alternatives in . The drawings are for illustration purposes and are not drawn to scale.
[0050] Terms such as "upper", "lower", "left", and "right" are used in this specification, not to limit the absolute orientation of components, but to describe the relative positions of components in the view to help understanding; in this specification "Top side" and "bottom side" are relative to the orientation of the upper and lower sides of an object...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiment of the invention discloses a sparse multi-input multi-output array arrangement for active millimeter wave security check imaging. The sparse multiple-input multiple-output array arrangement comprises a plurality of transmitting antennas and a plurality of receiving antennas, wherein the plurality of transmitting antennas and the plurality of receiving antennas are arranged into two groups of antennas arranged in a first direction; the two groups of antennas are divided into a plurality of chips arranged in a first direction, each chip comprises N1 transmitting antennas arranged in a first row in the first direction and N2 receiving antennas arranged in a second row in the first direction, the N1 transmitting antennas and the N2 receiving antennas are spaced in the second direction perpendicular to the first direction, N1 and N2 are positive integers greater than or equal to 2, and N1 is less than N2. In each of the two groups of antennas, combinations of N1 transmitting antennas and combinations of N2 receiving antennas are alternately arranged in the first direction, so that in each group of antennas, the N1 transmitting antennas are located between two combinations of N2 receiving antennas.
Description
technical field [0001] Embodiments of the present disclosure relate to the field of human body security inspection, and in particular to a multi-transmission and multi-reception antenna array arrangement for millimeter-wave security inspection imaging, a human body security inspection device including the multi-transmission and multi-reception antenna array arrangement, and a human body security inspection method performed using the device. Background technique [0002] At present, there are mainly the following two methods for public body imaging security check at home and abroad. [0003] The first human body imaging security inspection technology is based on passive millimeter wave terahertz human body imaging technology [L. Yujiri. "Passive millimeter wave imaging", IEEE MII-S Int. Microw. Sym. Dig, pp.98-101, 2006]. The biggest advantage of this method is to detect the target's own millimeter-wave terahertz wave radiation to achieve imaging without active radiation, but...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01S13/89G01S7/03G01V8/00
CPCG01S13/887G01S13/89G01S7/032G01V8/005
Inventor 陈志强赵自然李元景游燕解欢马旭明刘文国乔灵博柳兴
Owner NUCTECH CO LTD