Delay/Doppler-Mapping GPS-Reflection Remote-Sensing System

A radio receiver system that features enhanced capabilities for remote sensing by use of reflected Global Positioning System (GPS) signals has been developed. This system was designed primarily for ocean altimetry, but can also be used for scatterometry and bistatic synthetic aperture radar imaging. Moreover, it could readily be adapted to utilize navigation satellite systems other than the GPS, including the Russian Global Navigation Satellite System (GLONASS) and the proposed European Galileo system.