NSSC OpenIR  > 微波遥感部
GROUND MOVING TRAIN IMAGING BY KU-BAND RADAR WITH TWO RECEIVING CHANNELS
Zhang, Y.; Zhai, W.; Zhang, X.; Shi, X.; Gu, X.; Deng, Y.; Zhang, Y (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Department微波遥感部
Source PublicationPROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
2012
Volume130Pages:493-512
ISSN1559-8985
Language英语
AbstractRadar 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.; 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.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3433
Collection微波遥感部
Corresponding AuthorZhang, Y (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.
Recommended Citation
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..,...&Zhang, 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.
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