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Processing of Azimuth-Invariant Bistatic SAR Data Using the Range Doppler Algorithm

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3 Author(s)
Yew Lam Neo ; DSO Nat. Lab., Singapore ; Frank H. Wong ; Ian G. Cumming

This paper discusses bistatic synthetic aperture radar processing (complex image formation) using the Range Doppler Algorithm. The key step is to use an analytical form of the signal spectrum derived by the method of series reversion. The spectrum is used for secondary range compression (SRC), range cell migration correction, and azimuth compression. The algorithm is able to focus the azimuth-invariant bistatic configuration where the transmitter and receiver platforms are moving in parallel tracks with identical velocities. Moreover, the algorithm is able to handle reasonably high squints and wide apertures because SRC can be performed in the 2-D frequency domain.

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IEEE Transactions on Geoscience and Remote Sensing  (Volume:46 ,  Issue: 1 )