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Multiplexed subarray structure security check array

A multi-sub-array and sub-array technology, which is applied in the field of security inspection arrays, can solve the problems of long scanning time and slow inspection speed of human body security inspection equipment, and achieve the goal of reducing cost, reducing the complexity of array element design and arrangement, and improving the speed of human body security inspection Effect

Pending Publication Date: 2019-03-01
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The scanning time of the traditional linear array switching element by element is too long, which makes the inspection speed of human body security inspection equipment too slow

Method used

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  • Multiplexed subarray structure security check array
  • Multiplexed subarray structure security check array
  • Multiplexed subarray structure security check array

Examples

Experimental program
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Embodiment Construction

[0020] The present invention will be further elaborated below in combination.

[0021] Such as figure 1 As shown, the entire multiplexed multi-subarray structure security inspection array is installed on the metal support structure 105. The multiplexed multi-subarray structure security inspection array is composed of 128 multiplexed subarrays. It is designed with a mature automotive radar chip and has a working frequency band of 70 -80GHz, its total length L is 1.03 meters.

[0022] Each sub-array is composed of 1 transmitting array element and 8 receiving array elements, and the receiving array elements are symmetrically distributed on both sides of the transmitting array element, with 4 on each side.

[0023] For example, a transmitting array element 102-1 and 8 receiving array elements 101 constitute the first sub-array 103, and the second sub-array 104 is also composed of a transmitting array element 102-2 and 8 receiving array elements, among which there are 4 The recei...

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PUM

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Abstract

The invention discloses a multiplexed subarray structure security check array, and the array employs a multiplexed subarray sparse array structure, and employs various working modes to achieve the virtual reconstruction of the full array. The security check array can reduce the number of array elements of the security array by a half or more, thereby greatly reducing the cost. Meanwhile, the design and arrangement complexity of the array elements are also reduced. The security check array can reduce the security check scanning time by a half or more, thereby greatly reducing the security checktime of a person. The security check array enables the imaging quality to be hardly affected on the basis that the cost and the scanning time are reduced. Moreover, the security check scheme is compatible with a mature automobile radar chip, so the design cost and complexity of the security check array is further reduced.

Description

technical field [0001] The invention relates to a security inspection array based on a multiplexed multi-subarray structure, belonging to the field of human body security inspection. Background technique [0002] In recent years, with the deterioration of the international security situation and the rampant terrorism, the safety of crowded places such as airports and subway stations has begun to face more and more threats, and the demand for human security equipment is urgent. At present, the basic feature of the linear array used by human body security inspection equipment is that the electronic switch of the antenna array is used to switch the array elements one by one to complete one-dimensional scanning (CollinsH D, Mcmakin D L, Hall T E, et al. Real-time holographic surveillance system: U.S. Patent 5,455,590 [P].1995-10-3; Sheen D M, Collins H D, Hall T E, et al. Real-time wideband holographic surveillance system: U.S. Patent 5,557,283 [P].1996-09-17), and then by contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/42
CPCG01S7/42
Inventor 吴福伟李思明尚士泽
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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