An interdisciplinary approach at studying the Earth-Sun system with GPS/GNSS and GPS-like signals
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Engineering topics
Publications and source records attributed to Hajj, G..
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We present the first spaceborne observation of a Global Positioning System (GPS) signal reflected from the Earth's surface, specifically from the Pacific Ocean.
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In the fall of 1999 an experiment was performed at Crater Lake, Oregon, to demonstrate the feasibility of surface altimetry with GPS. A GPS antenna was directed at the lake - its axis pointing slightly downward - from a steeply dropping rock.
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