Quantative Representation of SAR Image Qualities

Abstract

This paper discusses the dependence of SAR image qualities on the operating parameters for spaceborne SAR systems. The subjects treated in this paper are:
-incidence angle considerations for SAR imagery with geologic mapping purposes,
-the relation between the signal-to-noise ratio of the radar-receiver output signal and SAR image qualities,
-the influence of the receiver output signal quantization upon SAR image qualities.
We have defined several parameters to characterize SAR image qualities and determined them as a function of SAR system parameters.
The derived results, summarized in tables and charts, will provide quantative data to radar studies employing radar image simulation, in which image qualities are generally assessed visually. The results can also be applied to investigate the qualities and limitations of actual SAR images.