FOD Detection on Airport Runway with Clutter Map CFAR Plane Technique
Foreign Object Debris (FOD) detection is an importance issue to civil aviation safety. In this chapter, the technique of clutter map CFAR plane detection is discussed in detail and applied to FOD detection on airport runway based on millimeter-wave linear
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FOD Detection on Airport Runway with Clutter Map CFAR Plane Technique Jin Erwen, Yan Danqing, Zhang Zhongjin, Zhong Qi, and Yu Xuelian
Abstract Foreign Object Debris (FOD) detection is an importance issue to civil aviation safety. In this chapter, the technique of clutter map CFAR plane detection is discussed in detail and applied to FOD detection on airport runway based on millimeter-wave linear frequency modulated continuous wave (LFMCW) radar. The detection performance of the technique is analyzed, and a simulation experiment is conducted. Simulation result shows the effectiveness of the clutter map CFAR plane detection technique in relatively low signal-to-clutter ratio (SCR) situation. Keywords Clutter map • FOD detection • CFAR plane detection technique • LFMCW radar
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Introduction
Airport runway foreign object debris (FOD) may cause damages or disasters to aircrafts. The crash of a Concorde jet in France in 2000 is an example of disasters due to FOD. Moreover, a lot of money is spent each year by airlines for repairing the damages caused by FODs to aircrafts. Consequently, some FOD detection systems have been developed and tested on airports recently, such as Tarsier
The National Natural Science foundation of China (No. 61139003) and the Fundamental Research Funds for the Central Universities (No. ZYGX2010J022). J. Erwen • Y. Danqing (*) • Z. Zhongjin • Z. Qi The Second Research Institute of CAAC, Chengdu, China e-mail: [email protected]; [email protected] Y. Xuelian School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, China e-mail: [email protected] Q. Liang et al. (eds.), Communications, Signal Processing, and Systems, Lecture Notes in Electrical Engineering 202, DOI 10.1007/978-1-4614-5803-6_34, # Springer Science+Business Media New York 2012
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system, FODetect, iFerret, and etc. Most of them are based on millimeter-wave radar and an optical sensor [1, 2] One of the key problems of FOD detection is how to find small target under relatively strong clutter background. The millimeter-wave linear frequency modulated continuous wave (LFMCW) radar is very suitable to FOD detection since it has excellent properties such as high range resolution, high sensitivity, no range blind area, and etc., which is helpful to detect small target. The clutter situation on airport runway faced by the FOD detection radar is rather complex. So it is necessary to establish the clutter map and use the constant false alarm rate (CFAR) technique [3, 4] to obtain a satisfactory detection performance, that is, the clutter map CFAR technique. The conventional clutter map CFAR method is often used to detect targets in a temporally stationary and spatially non-homogeneous background, which is also called clutter map CFAR point technique [5]. As an extension of the point technique to spatial processing, the clutter map CFAR plane technique was proposed [6]. And it has been shown that the performance of the plane technique is superior to that of the poi
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