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Experimental device of terahertz radar scattering imaging

A radar scattering and experimental device technology, applied in the field of terahertz radar imaging and communication, can solve the problems of terahertz wave generation and detection difficulties, low stability, unclear scattering characteristics, etc.

Inactive Publication Date: 2018-12-18
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the generation and detection of terahertz waves is very difficult, the stability is low, and its scattering properties are rarely studied, resulting in unclear and lack of reliable data

Method used

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  • Experimental device of terahertz radar scattering imaging
  • Experimental device of terahertz radar scattering imaging
  • Experimental device of terahertz radar scattering imaging

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0028] Please also refer to figure 1 and figure 2 , an experimental device for terahertz radar scattering imaging provided in an embodiment of the present application, the device may include a signal generating device 100, a signal transmitting device 200, a signal conducting device 300, a mobile platform 400 and a signal receiving device 500, the signal generating device The device 100 communicates with the signal transmitting device 200 and the signal receiving device 500. The mobile platform 400 is used to place the target to be measured (not shown in the figure), and...

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Abstract

The invention relates to an experimental device of terahertz radar scattering imaging. The device comprises a signal generating device, a signal transmitting device, a signal conducting device, a mobile platform and a signal receiving device. A vector network analyzer generates a transmitting signal, a transmitting end extension member boosts the frequency of the transmitting signal to a terahertzband to form an incident signal, and then the incident signal is radiated by a transmitting antenna, the incident signal is conducted by the signal conducting device and acts on a to-be-measured target of the mobile platform, the mobile platform drives the to-be-measured target to move, and a receiving antenna receives echo signals at different positions, transmits the echo signals to a receivingend extension member and the signal generating device and realizes the scattering imaging according to the incident signal and the echo signals. The device provided by the invention uses the vector network analyzer, and is provided with the transmitting end extension member, the transmitting antenna, the receiving end extension member and the receiving antenna to generate terahertz waves with high stability, and the mobile platform drives the to-be-measured target to move, so that the terahertz radar scattering imaging is more accurate.

Description

technical field [0001] This application relates to the field of terahertz radar imaging and communication, in particular to an experimental device for terahertz radar scattering imaging. Background technique [0002] With the development of security imaging technology, terahertz radar imaging technology is the most promising imaging technology. Compared with millimeter-wave radar, terahertz wave has higher resolution, can get more details of the target, and is more conducive to target detection. Automatic detection and identification, in which scattering is the basic process of interaction between electromagnetic waves and targets in radar imaging. The target's scattering signal is the original echo data in radar imaging. It is of great significance that the simulation of target scattering signals in the security inspection scene is helpful to the development of automatic target detection and recognition algorithms. [0003] However, the generation and detection of terahert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 郑小平欧湛张德鉴刘佳明李志杰李佳
Owner TSINGHUA UNIV
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