TY - GEN
T1 - Real time ISAR imaging algorithm of maneuvering targets based on the fractional fourier transform
AU - Liu, Mingjing
AU - Gao, Meiguo
AU - Fu, Tuo
PY - 2007
Y1 - 2007
N2 - Real time ISAR imaging of maneuvering targets is studied, when the target's maneuverability is not too serious and the Doppler variation of scatterer sub-echoes can be approximated as a first order polynomial. A FRFT (fractional Fourier transform) based ISAR range-instantaneous Doppler (RID) imaging algorithm of maneuvering targets is presented. In this algorithm, the FRFT, instead of FFT, is employed to accomplish the cross-range resolution. The prior information of target motion is utilized to reduce its searching range and thus its computational complexity. Experiments on real data show its validity and efficiency. High quality ISAR images of maneuvering targets can be obtained with much less computations using this algorithm than other existing ones. It's suitable for real time ISAR imaging of maneuvering targets.
AB - Real time ISAR imaging of maneuvering targets is studied, when the target's maneuverability is not too serious and the Doppler variation of scatterer sub-echoes can be approximated as a first order polynomial. A FRFT (fractional Fourier transform) based ISAR range-instantaneous Doppler (RID) imaging algorithm of maneuvering targets is presented. In this algorithm, the FRFT, instead of FFT, is employed to accomplish the cross-range resolution. The prior information of target motion is utilized to reduce its searching range and thus its computational complexity. Experiments on real data show its validity and efficiency. High quality ISAR images of maneuvering targets can be obtained with much less computations using this algorithm than other existing ones. It's suitable for real time ISAR imaging of maneuvering targets.
UR - http://www.scopus.com/inward/record.url?scp=47349088885&partnerID=8YFLogxK
U2 - 10.1109/APSAR.2007.4418701
DO - 10.1109/APSAR.2007.4418701
M3 - Conference contribution
AN - SCOPUS:47349088885
SN - 1424411882
SN - 9781424411887
T3 - 2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings, APSAR 2007
SP - 667
EP - 670
BT - 2007 1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings, APSAR 2007
T2 - 2007 1st Asian and Pacific Conference on Synthetic Aperture Radar, APSAR 2007
Y2 - 5 November 2007 through 9 November 2007
ER -