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Volume 33 Issue 2
Mar.  2011
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Ma Bing-Qiang, Yu Bin-Bin, Liu Chang, Wang Yan-Fei. A 2-D Fourier Domain Algorithm for StripMap FMCW-SAR Raw Signal Simulation[J]. Journal of Electronics & Information Technology, 2011, 33(2): 375-380. doi: 10.3724/SP.J.1146.2010.00430
Citation: Ma Bing-Qiang, Yu Bin-Bin, Liu Chang, Wang Yan-Fei. A 2-D Fourier Domain Algorithm for StripMap FMCW-SAR Raw Signal Simulation[J]. Journal of Electronics & Information Technology, 2011, 33(2): 375-380. doi: 10.3724/SP.J.1146.2010.00430

A 2-D Fourier Domain Algorithm for StripMap FMCW-SAR Raw Signal Simulation

doi: 10.3724/SP.J.1146.2010.00430
  • Received Date: 2010-04-29
  • Rev Recd Date: 2010-07-28
  • Publish Date: 2011-02-19
  • Because of small size, lightweight, inexpensive and high-resolution, recently FMCW-SAR develops rapidly and has a great prospect in the cost-effective civil applications. The system transfer function of StripMap FMCW-SAR is different from that of pulsed SAR, therefore the efficient simulation approaches for pulsed SAR could not directly be applied to FMCW-SAR. Based on the analysis of the StripMap FMCW-SAR signal characteristics, a 2-D Fourier domain algorithm of the raw signal simulation for stripmap FMCW-SAR is proposed. The proposed algorithm computes the range and azimuth integration used in time-domain simulation method efficiently by FFT technique. With respect to the time-domain simulation, the computational load is reduced by the order of O(NaNr/log2(NaNr)). The rationality and effectiveness of the presented algorithm are verified with the simulation.
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