Modeling of Foreign Objects Debris Detection Radar on Airport Runway
Based on the fixed environment of airport runway where foreign objects debris detection radar on airport runway works on, geometric model is established by using method of coordinate system transformation. Meanwhile, approximation of model parameters is u
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Modeling of Foreign Objects Debris Detection Radar on Airport Runway Dandan Ao, Xuegang Wang and Hong Wang
Abstract Based on the fixed environment of airport runway where foreign objects debris detection radar on airport runway works on, geometric model is established by using method of coordinate system transformation. Meanwhile, approximation of model parameters is used in order to simplify the calculation. This paper analyses echo signal to establish the model of corresponding target signal and uses statistical model to produce clutter. As the main source of clutter is from meadow and runway, the backscatter coefficient of the composite scene is calculated combine with geometric model. Clutter of random sequences and echo is simulated based on MATLAB and the result is given. Keywords Foreign objects debris (FOD) detection Geometric model Echo signal
Millimeter-wave radar
13.1 Introduction Airport runways foreign object debris (FOD, Foreign Object Debris abbreviation) mean foreign objects that don’t belong to airport but may appear in the operation of the airport area and cause loss or harm to the aircraft [1]. Harm brought by FOD not only damage aircraft and take away precious lives, but also accompanied by economic losses. Currently most airports use the approach of artificial visited regularly, which not only time-consuming taking up valuable time of runway use
D. Ao (&) X. Wang H. Wang University of Electronic Science and Technology of China (UESTC), No.2006 Xiyuan Road, High-tech Western District, Chengdu, Sichuan, China e-mail: [email protected]
W. Lu et al. (eds.), Proceedings of the 2012 International Conference on Information Technology and Software Engineering, Lecture Notes in Electrical Engineering 210, DOI: 10.1007/978-3-642-34528-9_13, Ó Springer-Verlag Berlin Heidelberg 2013
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Fig. 13.1 FOD radar geometry relationship diagram
Radar
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and led to security risks subject to weather and other factors. Therefore, effective and reliable monitoring of FOD is a problem need to be solved urgently. Since the Concorde Tragedy in 2000, many countries have started to develop FOD detection system. View from several reported FOD monitoring system [2–4], radar monitoring systems for FOD mainly use millimeter-wave radar and commonly use frequency modulated continuous wave (FMCW) radar system. FOD radar in this paper is fixed radar to scan the land and land clutter is the main factor to affect its detection performance [5]. Therefore, the radar clutter model plays an important role in assessment of FOD radar work performance. This paper discusses FOD detection radar model. According to the specific work environment of radar, geometric model is established by using coordinate system transformation method. Then echo signal model is discussed, including target echo, clutter and noise, while clutter is focus. The backscatter coefficient of the composite scene is calculated combining with geometric model according to grass-runway composite scene. T
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