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1 International Journal of Electronics and Telecommunications

1 2016

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An analysis of Chosen Image Formation Algorithms for Synthetic Aperture Radar with FMCW

Okoń-Fąfara M., Serafin P., Kawalec A.

International Journal of Electronics and Telecommunications

2016

Vol. 62, No. 4

323--328

The modelling of FMCW SAR systems, due to long signal duration time, commonly used start-stop approximation for pulsed radars causes errors in the image. Continuous motion of the radar platform results in additional range-azimuth couplings and range walk term that should be considered in processing of signal from this type of radar. The paper presents an analysis of the following algorithms: Time Domain Correlation (TDC), Range Doppler Algorithm (RDA), and Range Migration Algorithm (RMA). The comparison of the algorithms is based on theoretical estimation of their computation complexity and the quality of images obtained on the basis of real signals of FMCW SAR systems.