Title :
The detection of multi moving targets for the airborne SAR
Author :
Tang Shiyue ; Gao Xincheng
Author_Institution :
East China Res. Inst. of Electron. Eng., Hefei
Abstract :
In the airborne SAR system, the echo signal is modulated by the moving target\´s velocity and acceleration. A method based on the fractional Fourier transform and "clean " technique to detect multi moving targets is presented, and a fast auto-search algorithm is proposed. The results of simulation proved the multi targets resolution of this method. It can eliminate the influence of cross terms in time-frequency domain and identify the multi targets correctly as the detection SNR below -8 dB.
Keywords :
Fourier transforms; airborne radar; radar signal processing; radar tracking; search problems; synthetic aperture radar; target tracking; time-frequency analysis; airborne SAR system; clean technique; echo signal; fast autosearch algorithm; fractional Fourier transform; moving target acceleration; moving target velocity; multimoving targets detection; time-frequency domain; Acceleration; Airplanes; Fourier transforms; Pulse modulation; Radar detection; Radar signal processing; Signal processing algorithms; Signal resolution; Time frequency analysis; Virtual colonoscopy;
Conference_Titel :
Synthetic Aperture Radar, 2007. APSAR 2007. 1st Asian and Pacific Conference on
Conference_Location :
Huangshan
Print_ISBN :
978-1-4244-1188-7
Electronic_ISBN :
978-1-4244-1188-7
DOI :
10.1109/APSAR.2007.4418707
