Foreign body detection system for airfield runway

A technology for the detection of airport runways and foreign objects, which is applied in radio wave measurement systems, measurement devices, electromagnetic wave detection, etc. High azimuth resolution to achieve the effect of detection

Inactive Publication Date: 2013-04-17
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

If the resolution of the radar in terms of distance and azimuth is not high enough, then the area of ​​the ground clutter unit is large, and its echo strength may be much stronger than that of the debris echo to be detected, and the method of moving target detection cannot be used to eliminate ground clutter. st

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  • Foreign body detection system for airfield runway
  • Foreign body detection system for airfield runway
  • Foreign body detection system for airfield runway

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with drawings and embodiments.

[0022] figure 1 A block diagram of a foreign object detection system on an airport runway is shown, which uses a semi-circular motion radar transceiver front-end and antenna, and realizes high-resolution detection of foreign objects on an airport runway through broadband chirp and aperture forming methods. The airport runway foreign object detection system consists of an 8mm band transmitting and receiving antenna, a radar transceiver front end 1, a cantilever 5, a rotating mechanism 2, a bracket 6, a signal processor 3 and a display control terminal 4. Wherein the transmitting and receiving antenna is connected with the radar transceiver front end 1 through a waveguide, and is supported by a cantilever 5, and the cantilever 5 is connected with the rotation mechanism on the support 6, and the radar transceiver front end 1 is connected with the signal processor 3 through...

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Abstract

The invention discloses a foreign body detection system for an airfield runway. The system consists of a radar transmission and receiving antenna, a radar transceiver front-end, a cantilever, a rotating mechanism, a signal processor and a display control terminal, wherein the radar transmission and receiving antenna is connected with the radar transceiver front-end through a waveguide; the radar transceiver front-end is connected with the signal processor through the rotating mechanism; and the signal processor is connected with the display control terminal. For a linear frequency modulation continuous wave system, a high range resolution is obtained by wideband linear frequency modulation, and a synthetic aperture is constructed by the rotation of the antenna along a semicircular trajectory, so that a high azimuth resolution is obtained, the area of a ground clutter unit is reduced, and a small fragment target on the runway can be detected.

Description

Technical field: [0001] The invention belongs to the field of airport safety detection, and in particular relates to an airport runway foreign object detection system. The system mainly uses a synthetic aperture continuous wave FM radar display with a rotating antenna to realize high-resolution detection of airport runway surface targets and reduce ground noise. wave interference. Background technique: [0002] The automatic detection of foreign debris on the surface of the airport runway is an important issue related to aviation safety. When the aircraft is taxiing on the runway at high speed, the debris on the runway is a serious threat to the safety of the aircraft and the surrounding personnel and vehicles. It is estimated that the accidents caused by the runway debris cause the aviation industry to lose 4 billion US dollars every year. Generally, the radar cross-sectional area of ​​small-sized debris is only -20dBm 2 Below, these small objects are stationary on the ru...

Claims

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Application Information

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IPC IPC(8): G01V3/12G01S13/88
CPCG01S13/9076G01S13/9082
Inventor 张军
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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