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Processing of Ultrahigh-Resolution Spaceborne Sliding Spotlight SAR Data on Curved Orbit

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4 Author(s)
Feng He ; Nat. Univ. of Defense Technol., Changsha, China ; Qi Chen ; Zhen Dong ; Zaoyu Sun

In high-resolution spaceborne synthetic aperture radars (SARs), with increasing synthetic aperture length on curved orbits, the hyperbolic range history (HRH) assumption deteriorates, and simple analytic transfer functions in the Doppler domain used in SAR processing do not exist. A subsection HRH model is proposed. Ultra- high-resolution sliding spotlight SAR data can be handled satisfactorily, and simple analytic transform functions are used all the same. The proposed range history model is also applicable to bistatic SARs.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:49 ,  Issue: 2 )