Title :
The representation of moving targets in multi-channel UWB SAR images and it’s application in the generalization of image domain GMTI methods
Author :
Yu-Lin Chang ; Hong Zhou ; Xiao-tao Huang ; Zhi-min Zhou
Author_Institution :
Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha
Abstract :
To generalize the image domain GMTI methods for slow moving targets to be suitable for detection fast moving targets with multi-channel ultra-wide band (UWB) SAR system, the representation of moving targets in multi-channel UWB SAR images is studied in this paper. By analyzing the local back projection (LBP) SAR imaging process for the moving target, this paper gives the analytic expressions of the moving target in the multi-channel UWB SAR images. Following the results, the image domain GMTI methods can be generalized to be suitable for fast moving targets that defocus in multi-channel UWB SAR images. This generalization is demonstrated via the ATI method.
Keywords :
radar imaging; synthetic aperture radar; ultra wideband communication; image domain GMTI methods; local back projection analysis; moving target representation; multichannel UWB SAR images; multichannel ultra-wide band system; synthetic aperture radar; Azimuth; Directive antennas; Geometry; Image analysis; Radar antennas; Radar polarimetry; Radar tracking; Receiving antennas; Transmitting antennas; Ultra wideband antennas;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697663
