GROUND MOVING TRAIN IMAGING BY KU-BAND RADAR WITH TWO RECEIVING CHANNELS

	GROUND MOVING TRAIN IMAGING BY KU-BAND RADAR WITH TWO RECEIVING CHANNELS
	Zhang, Y.; Zhai, W.; Zhang, X.; Shi, X.; Gu, X.; Deng, Y.
刊名	PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
	2012
卷号	130 页码:493-512
ISSN号	1559-8985
通讯作者	Zhang, Y (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
中文摘要	Radar imaging experiment of ground moving target a light rail-way train by Ku-band radar with two receiving channels is introduced with imaging results presented. Both coherent and incoherent imaging as well as co-pol and cross-pol interferometric imaging were conducted with SAR amplitude images as well as interferometric-phase images obtained and compared. The along-track interferometric-phase images clearly show the speed variation of the train, i.e., the train traveled at an increasing speed in one direction and at a decreasing speed in the opposite direction. The incoherent imaging results indicate that for bistatic or multi-static radar imaging, the ultra-stable crystal oscillator (USCO) used by transmitter need not to be synchronized to the USCO used by receiver provided that the two basic crystal oscillators have small frequency difference and high stability. For better knowing the speed variation, Short Time Fourier Transform (STFT) is applied to the azimuthal signals to get the instant Doppler frequencies (IDFs), from which one can judge acceleration or deceleration status of the moving train. Electromagnetic scattering characteristics of the train are analyzed according to the SAR images. The estimated speed and length of the train are very well agreed with real situation.
英文摘要	Radar imaging experiment of ground moving target a light rail-way train by Ku-band radar with two receiving channels is introduced with imaging results presented. Both coherent and incoherent imaging as well as co-pol and cross-pol interferometric imaging were conducted with SAR amplitude images as well as interferometric-phase images obtained and compared. The along-track interferometric-phase images clearly show the speed variation of the train, i.e., the train traveled at an increasing speed in one direction and at a decreasing speed in the opposite direction. The incoherent imaging results indicate that for bistatic or multi-static radar imaging, the ultra-stable crystal oscillator (USCO) used by transmitter need not to be synchronized to the USCO used by receiver provided that the two basic crystal oscillators have small frequency difference and high stability. For better knowing the speed variation, Short Time Fourier Transform (STFT) is applied to the azimuthal signals to get the instant Doppler frequencies (IDFs), from which one can judge acceleration or deceleration status of the moving train. Electromagnetic scattering characteristics of the train are analyzed according to the SAR images. The estimated speed and length of the train are very well agreed with real situation.
学科主题	微波遥感
收录类别	SCI ; EI
语种	英语
公开日期	2014-12-15
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/3433]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Zhang, Y.,Zhai, W.,Zhang, X.,et al. GROUND MOVING TRAIN IMAGING BY KU-BAND RADAR WITH TWO RECEIVING CHANNELS[J]. PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER,2012,130:493-512.
APA	Zhang, Y.,Zhai, W.,Zhang, X.,Shi, X.,Gu, X.,&Deng, Y..(2012).GROUND MOVING TRAIN IMAGING BY KU-BAND RADAR WITH TWO RECEIVING CHANNELS.PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER,130,493-512.
MLA	Zhang, Y.,et al."GROUND MOVING TRAIN IMAGING BY KU-BAND RADAR WITH TWO RECEIVING CHANNELS".PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER 130(2012):493-512.