Processing of sliding spotlight mode data with consideration of orbit geometry

Alicja Ossowska; Rainer Speck

doi:10.1117/12.838240

5 August 2009 Processing of sliding spotlight mode data with consideration of orbit geometry

Alicja Ossowska, Rainer Speck

Proceedings Volume 7502, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2009; 75020O (2009) https://doi.org/10.1117/12.838240
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2009, 2009, Wilga, Poland

Abstract

In this paper a processing algorithm for sliding spotlight SAR raw data with consideration of orbit geometry is presented. The processing is based on the chirp scaling algorithm with a pre-processing step for the sliding spotlight mode. The chirp scaling processing algorithm for SAR raw data assumes a flat Earth geometry. This approximation is not valid for a high resolution satellite Proposed algorithm considers a circular orbit and corrects the processing algorithm accordingly through a range dependent velocity ratio. The processing algorithm is evaluated on a simulated raw data of a scene consisting of ideal point targets.

Citation Download Citation

Alicja Ossowska and Rainer Speck "Processing of sliding spotlight mode data with consideration of orbit geometry", Proc. SPIE 7502, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2009, 75020O (5 August 2009); https://doi.org/10.1117/12.838240

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