TY - GEN
T1 - Fast two-dimensional imaging of scattering centers using the nonuniform FFT
AU - Li, Shiyong
AU - Li, Chong
AU - Zhu, Bocheng
PY - 2010
Y1 - 2010
N2 - Radar imaging of target scattering centers can be of great diagnostic utility. Conventionally, the radar image has been produced by a technique widely used in computer-aided tomography (CAT), e.g. the filtered backprojetion (FBP) algorithm. FBP reconstruction produces high quality images by handling the measured data directly in polar format. However, the FBP algorithm is more computationally complex than the direct Fourier methods. This paper develops fast two-dimensional (2-D) imaging of scattering centers using a nonuniform fast Fourier transform (NUFFT) algorithm. The proposed method is first compared to the conventional FBP approach on simulated data and then applied to real data sets measured on the RCS test range. Results suggest that the NUFFT method can produce more precise images and requires much less computational time than the FBP algorithm.
AB - Radar imaging of target scattering centers can be of great diagnostic utility. Conventionally, the radar image has been produced by a technique widely used in computer-aided tomography (CAT), e.g. the filtered backprojetion (FBP) algorithm. FBP reconstruction produces high quality images by handling the measured data directly in polar format. However, the FBP algorithm is more computationally complex than the direct Fourier methods. This paper develops fast two-dimensional (2-D) imaging of scattering centers using a nonuniform fast Fourier transform (NUFFT) algorithm. The proposed method is first compared to the conventional FBP approach on simulated data and then applied to real data sets measured on the RCS test range. Results suggest that the NUFFT method can produce more precise images and requires much less computational time than the FBP algorithm.
UR - http://www.scopus.com/inward/record.url?scp=79953773522&partnerID=8YFLogxK
U2 - 10.1109/ICMMT.2010.5525015
DO - 10.1109/ICMMT.2010.5525015
M3 - Conference contribution
AN - SCOPUS:79953773522
SN - 9781424457052
T3 - 2010 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2010
SP - 1204
EP - 1207
BT - 2010 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2010
T2 - 2010 International Conference on Microwave and Millimeter Wave Technology, ICMMT 2010
Y2 - 8 May 2010 through 11 May 2010
ER -