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1 International Journal of Electronics and Telecommunications

1 2014

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Modifications of Range-Doppler Algorithm for Compensation of SAR Platform Motion Instabilities

Gorovyi I. M., Bezvesilniy O. O., Vavriv D. M.

International Journal of Electronics and Telecommunications

2014

Vol. 60, No. 3

225-231

Two modifications of the range-Doppler algorithm (RDA) have been proposed to solve problems of SAR platform motion instabilities. First, the multi-look processing based on the RDA with an extended Doppler bandwidth has been introduced for correction of radiometric errors. Second, the RDA has been modified to perform SAR image formation on short-time acquisition intervals to use it in a recently-developed local-quadratic map-drift autofocus (LQMDA) method. The performance of the methods is illustrated with experimental data obtained by airborne SAR systems.