Efficient Stripmap-Mode SAR Raw Data Simulation Including Platform Angular Deviations


Dogan O., Kartal M.

IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, cilt.8, ss.784-788, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 8 Konu: 4
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1109/lgrs.2011.2112633
  • Dergi Adı: IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
  • Sayfa Sayıları: ss.784-788

Özet

The radiometric performance of high-resolution synthetic aperture radar systems under degrading conditions such as the unintentional angular motion of the platform can only be analyzed and evaluated by modeling the whole imaging system through simulation. The raw data generation in the time domain achieves a realistic simulation procedure but, on the contrary, is time inefficient. The frequency-domain approach promises computational efficiency; however, it lacks the consideration of the antenna deviations. In this letter, we propose a frequency-domain stripmap-mode raw data generator of an extended scene, taking into consideration the platform angular deviations. The generated raw data are also validated, and the corresponding radiometric degradation is analyzed.