Title :
Airport Runway FOD Detection Based on LFMCW Radar Using Interpolated FFT and CLEAN
Author :
Qi, Zhong ; Zhongjin, Zhang ; Danqing, Yan ; Erwen, Jin ; Xuelian, Yu
Author_Institution :
Second Res. Inst. of CAAC, Chengdu, China
Abstract :
Airport runway foreign object debris (FOD) detection is an importance issue to civil aviation safety. For the millimeter-wave linear frequency modulated continuous wave (LFMCW) radar, the problem of FOD detection can be formulated as the frequency estimation of a multi-frequency sinusoidal signal, to which many methods have been presented. In this paper, two effective frequency estimation methods based on interpolated FFT, namely Rife-Jane´s and Quinn´s algorithms, combined with the CLEAN technique, are discussed in detail and applied to the field of airport runway FOD detection. The frequency estimation error and the effect of windowing of the two methods are analyzed and compared by simulation experiment.
Keywords :
CW radar; FM radar; airports; fast Fourier transforms; frequency estimation; interpolation; millimetre wave radar; CLEAN; LFMCW radar; Quinn algorithm; Rife-Jane algorithm; airport runway FOD detection; civil aviation safety; foreign object debris; frequency estimation; interpolated FFT; millimeter-wave linear frequency modulated continuous wave radar; multifrequency sinusoidal signal; Airports; Estimation error; Frequency estimation; Frequency modulation; Interpolation; Radar detection; CLEAN technique; FOD detection; frequency estimattion; interpolated FFT; windowing;
Conference_Titel :
Computer and Information Technology (CIT), 2012 IEEE 12th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-4873-7
DOI :
10.1109/CIT.2012.160
