Title :
Experimental Determination of the Sea Correlation Time Using GNSS-R Coherent Data
Author :
Valencia, Enric ; Camps, Adriano ; Marchan-Hernandez, Juan Fernando ; Rodriguez-Alvarez, Nereida ; Ramos-Perez, Isaac ; Bosch-Lluis, Xavier
Author_Institution :
Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
The feasibility of the Global Navigation Satellite Signal Reflectometry (GNSS-R) techniques has been proven for remote determination of sea state. When using GNSS-R techniques, coherent integration time is limited by the correlation time of the surface under observation which, in the case of the ocean, depends on sea state. In this letter, a new technique to retrieve the sea correlation time at L-band using GNSS-R coherent data is presented along with experimental results.
Keywords :
Global Positioning System; oceanographic techniques; reflectometry; remote sensing by radar; GNSS-R coherent data; GNSS-R techniques; global navigation satellite signal reflectometry; sea correlation time L-band retrieval; sea state remote determination; Altimetry; Delay effects; Distributed decision making; Oceans; Reflectometry; Remote sensing; Satellite navigation systems; Scattering; Sea surface; Signal to noise ratio; Correlation time; Global Navigation Satellite Signals Reflectometry (GNSS-R); delay-Doppler map (DDM); sea coherence time; sea state;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2010.2046135
