Recovery Of Surface Parameters From Stepped-Frequency Radar Returns

• Main Authors: Margaret Cheney, David Isaacson, Victoria I. Lytle, Stephen F. Ackley
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Sea ice
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.27.3459; http://www.rpi.edu/~chenem/icemacs.ps

This paper discusses a method for using the reflected signal from a stepped-frequency radar system to obtain the electrical permittivity and conductivity in a thin layer at the flat surface of a (possibly inhomogeneous) body. The method is based on a band-limited version of geometrical optics. 1. INTRODUCTION. This work is motivated by the problem of remote sensing of sea ice [A]. There are several reasons for interest in this topic. First, it is hoped that remote electromagnetic measurements will provide information about the electric properties, and then it is hoped that knowledge of the electric properties can eventually be translated into information about the ice's physical properties. Knowledge of these properties would, in turn, be very useful as an aid to ship navigation and other operations in ice-covered regions, such as landing planes on ice. Another reason for interest in sea ice is its importance in global climate models. Because of the remoteness of polar regions, satel.