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

Volume

7

Issue

4

fYear

2010

Firstpage

675

Lastpage

679

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;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2010.2046135

Filename

5454356