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On the modifier chirp z transform for synthetic aperture radar systems

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4 Author(s)
Adams, J.W. ; Dept. of Electr. & Comput. Eng., California State Univ., Northridge, CA, USA ; Bayma, R.W. ; Lawrence, M.E. ; Petrosian, L.

A modified chirp z-transform (MCZT) algorithm which has been proposed by W. Lawton (IEEE Trans. Acoust., Speech, Signal Processing, vol.ASSP-36, p.931-3, June 1988) to replace the conventional polar format interpolation in synthetic aperture radar (SAR) systems is discussed. The key assumption used in the MCZT approach is that the spatial-frequency samples can be obtained on a concentric squares (CS) grid. The CS grid is briefly reviewed. The conventional approach to processing CS grid data is described. The MCZT is discussed, and its disadvantages are emphasized

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Signal Processing, IEEE Transactions on  (Volume:39 ,  Issue: 4 )