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

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

193

Lastpage

196

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);

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APSAR.2009.5374240

Filename

5374240