publication . Article . 2013

The Radiometric Measurement Quantity for SAR Images

Bjorn J. Doring; Marco Schwerdt;
German
  • Published: 01 Feb 2013
  • Publisher: IEEE - Institute of Electrical and Electronics Engineers
  • Country: Germany
Abstract
A Synthetic Aperture Radar (SAR) system measures among other quantities the terrain radar reflectivity. After image calibration, the pixel intensities are commonly expressed in terms of radar cross sections (for point targets) or as backscatter coefficients (for distributed targets), which are directly related. This paper argues that pixel intensities are not generally proportional to radar cross section or derived physical quantities. The paper further proposes to replace the inaccurate term radar cross section by equivalent radar cross section as the radiometric measurement quantity for SAR images. The measurement procedure as such remains unchanged. Two probl...
Subjects
arXiv: Physics::Atmospheric and Oceanic PhysicsComputer Science::Graphics
free text keywords: Satelliten-SAR-Systeme, Electrical and Electronic Engineering, General Earth and Planetary Sciences, Synthetic aperture radar, Optics, business.industry, business, Side looking airborne radar, Radar, law.invention, law, Computer vision, Radar imaging, Mathematics, Continuous-wave radar, Early-warning radar, Remote sensing, Artificial intelligence, Bistatic radar, Inverse synthetic aperture radar
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