Title :
Ground slow moving target´s signal analysis for Interferoemtric SAR
Author :
Shuxuan, Chen ; Limin, Jiang ; Maosheng, Xiang ; Lideng, Wei ; Pengbin, Zhao
Author_Institution :
Nat. Key Lab. of Microwave Imaging Technol., Inst. of Electron., Beijing, China
Abstract :
Ground slow moving target detection using Interferoemtric SAR (InSAR) technique often omits the defocusing effect and just assumes that moving target has perfect Point Spread Function (PSF) as stationary point target does. In order to examine the defocusing effect on Interferometric Phase (IP) of moving target, we deduces the analytic description of moving target´s PSF and the interferoemtric phase under Along-Track Interferometric (ATI) mode and hybrid Along- and Across-Track interferometric mode. The effectiveness of moving target´s theoretical interferometric signal descriptions deduced is validated by simulations. Then, the clutter effects are also discussed and the interferoemtric signal modes of moving target plus clutter are also considered.
Keywords :
optical transfer function; radar cross-sections; radar interferometry; radar signal processing; radar target recognition; synthetic aperture radar; InSAR technique; along track interferometric mode; defocusing effect; ground slow moving target signal analysis; interferoemtric SAR; interferoemtric phase; interferometric signal; point spread function; stationary point target; target detection; Acceleration; Antennas; Clutter; Equations; Mathematical model; Radar cross section; Simulation; Along-Track Interferometric; Hybrid baseline; Interferometric SAR; Moving Target; Point Spread Function (PSF);
Conference_Titel :
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8444-7
DOI :
10.1109/CIE-Radar.2011.6159869
