Simultaneous reduction of sidelobes and grating lobes by realising nonlinear synthetic wideband waveforms in SAR processing

Simultaneous reduction of sidelobes and grating lobes by realising nonlinear synthetic wideband waveforms in SAR processing

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An alternative method of SAR signal processing which can be used to simultaneously reduce sidelobes and grating lobes of synthetic wideband waveforms (SWW) is proposed. The method applies the super spatially variant apodisation technique to each subpulse image of the SWW, and then cuts appropriate portions of the expanded spectra of the subpulses to effectively realise a nonlinear SWW with much better characteristics.


    1. 1)
      • D.R. Wehner . (1995) High-resolution radar.
    2. 2)
      • H.C. Stankwitz , R.J. Dallaire , J.R. Fienup . Nonlinear apodization for sidelobe contol in SAR imagery. IEEE Trans. Aerosp. Electron. Syst. , 1 , 267 - 279
    3. 3)
      • Stankwitz, H.C., Kosek, M.R.: `Sparse aperture fill for SAR using super-SVA', IEEE Radar Conference, May 1996, Ann Arbor, MI, USA, p. 70–75.
    4. 4)
      • Li, H.B., Zhang, Y.H., Wu, J.: `Sidelobes and grating lobes reduction of stepped-frequency chirp signal', Int. Symp. on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, August 2005, Beijing, China, 2, p. 1210–1213.
    5. 5)
      • Rabideau, D.J.: `Nonlinear synthetic wideband waveforms', IEEE Radar Conference, Apr. 2002, Long Beach, CA, USA, 149, p. 212–219.
    6. 6)
      • Gladkova, I., Chebanov, D.: `Suppression of grating lobes in stepped-frequency train', IEEE Radar Conference, May 2005, Arlington, VA, USA, p. 371–376.
    7. 7)
      • S. Guillaso , A. Reigber , L. Ferro-Famil , E. Pottier . Range resolution improvement of airborne SAR images. IEEE Trans. Geosci. Remote Sens. , 135 - 139
    8. 8)
      • B.L. Cho , Y.K. Kong , H.G. Park , Y.S. Kim . Automobile-based SAR/InSAR system for ground experiments. IEEE Trans. Geosci. Remote Sens. , 3 , 401 - 405

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