Analysis of potential indicators of radio observation efficiency based on information characteristics.

Synthetic aperture radar (SAR) is a powerful tool for remote sensing of the Earth's surface. The variety of practically important characteristics of a radar image quality and the radio observation conditions that determine them make it reasonable to introduce an unified indicator allowing at least a qualitative estimation of the influence of various factors on the potential radar observation efficiency, regardless of the signal processing method. As such an indicator, the amount of information contained in the reflected signal regarding the state of the observed object can be taken. Ratios are provided for decision-making on the efficiency of various approaches to the radio observation based on information-theoretic methods in terms of the indicators characterizing the amount of information received about the state of the observed object. The qualitative consideration carried out in this study ensures specifying the amount of information as a measure of the efficiency of radio observation during an aperture synthesis. [ABSTRACT FROM AUTHOR]