Title :
A novel GPS-based sensor for ocean altimetry
Author :
Wu, S.C. ; Romans, L.J. ; Young, L.E.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
A technique for a novel application of Global Positioning System (GPS) signals to ocean altimetry is described. The entire Earth surface is divided into a triangular grid of points nearly-uniformly spaced. The sea surface heights at the grid points are determined using the GPS signals reflected from the surrounding area. Practical grid size and data sampling rate are determined. An efficient estimation scheme is devised to solve for the thousands of parameters. A simulation analysis shows that global ocean altimetric information can be recovered to better than 10 cm with only 1 day of reflected GPS signals
Keywords :
Global Positioning System; height measurement; oceanographic techniques; GPS-based sensor; Global Positioning System signals; data sampling rate; estimation scheme; global ocean altimetric information; grid points; grid size; ocean altimetry; reflected GPS signals; sea surface heights; simulation analysis; triangular grid; Altimetry; Earth; Extraterrestrial measurements; Global Positioning System; Marine technology; Oceans; Satellites; Sea measurements; Sea surface; Spaceborne radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.703723
