Abstract
This paper presents a new processing algorithm for spotlight SAR data processing. The frequency scaling algorithm (FS) allows the processing of dechirped raw data. Due to the use of frequency scaling and SPECAN combined with azimuth scaling, the whole processing is performed without interpolations. A very useful formulation for dechirped SAR signals in the range Doppler domain is presented. The analytical modelling is presented in this paper. A more demonstrative explanation of the algorithm, including sub-aperture approach, frequency and azimuth scaling, can be found in J. Mittermeyer et al. (1997). A spotlight image is presented which has been processed from stripmap raw data of the E-SAR system of DLR by using the FS algorithm.
Published Version
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