A novel spectrum reconstruction algorithm based on FrFT for multiple azimuth beam SAR

  title={A novel spectrum reconstruction algorithm based on FrFT for multiple azimuth beam SAR},
  author={Baoliang Zhou and Shunsheng Zhang and Wei Zhang and Chunyang Dai and Lingkun Kong},
  journal={The 2010 IEEE International Conference on Information and Automation},
In this paper, we consider the problems of reconstructing the spectrum based on Fractional Fourier Transform (FrFT) from periodic non-uniformly sampled signal in multiple azimuth beams SAR system. First, based on the theory of the paired echoes, the influence of periodic non-uniform sampling for SAR imaging has been derived. Second, signal model of non-uniformly sampling in azimuth direction has been established. Finally, detailed analysis of spectrum reconstruction algorithm in the fractional… CONTINUE READING

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