Title :
A novel method of SAR multiple moving targets detection and parameter estimation
Author :
Zhang, Wei ; Tao, Ran ; Li, Yanlei
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
This study proposes a moving targets detection and parameter estimation technique based on short-time fractional Fourier transform (STFRFT) for airborne synthetic aperture radar (SAR). It is able to increase the signal-to-clutter ratio (SCR) and get the Doppler center frequency and Doppler frequency rate for moving targets even they are lying in the same line in the time-frequency plane. At the end, a comparison between the new method and fractional Fourier transform method is provided to illustrate the advantages.
Keywords :
Fourier transforms; airborne radar; object detection; parameter estimation; synthetic aperture radar; Doppler center frequency; Doppler frequency rate; SAR multiple moving targets detection; SCR; STFRFT; airborne synthetic aperture radar; parameter estimation; short-time fractional Fourier transform; signal-to-clutter ratio; time-frequency plane; Azimuth; Filtering; Focusing; Fourier transforms; Frequency estimation; Object detection; Parameter estimation; Synthetic aperture radar; Time domain analysis; Time frequency analysis; Moving target detection; fractional Fourier transform (FRFT); motion parameter estimation; short-time fractional Fourier transform (STFRFT); synthetic aperture radar (SAR);
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
DOI :
10.1109/APSAR.2009.5374240
