GNSS-R altimeter performance: Analysis of Cramer-Rao lower bounds

Earth-reflected Global Navigation Satellite System-signals have become an attractive tool for remote sensing, being proposed as a means to perform ocean altimetry, among many other applications. The technique exploiting navigation signals is widely known as GNSS-R. In this paper the well-known Crame...

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Hauptverfasser:	D'Addio, S., Martin-Neira, Manuel, Martin, F., Hyuk Park, Camps, A.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Altimetry Covariance matrix Cramer Rao Bound Cramer-Rao bounds Enginyeria de la telecomunicació Global Positioning System GNSS-R Mesurament Noise ocean altimetry Oceans Passive Reflectometry and interferometry System (PARIS) Radiació Radiocomunicació i exploració electromagnètica Remote sensing Spaceborne radar Teledeteccio Teledetecció Àrees temàtiques de la UPC
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Beschreibung
Zusammenfassung:	Earth-reflected Global Navigation Satellite System-signals have become an attractive tool for remote sensing, being proposed as a means to perform ocean altimetry, among many other applications. The technique exploiting navigation signals is widely known as GNSS-R. In this paper the well-known Cramer-Rao lower bound is used to predict the sea surface height estimation precision of a GNSS-R based spaceborne altimeter, exploiting the open-access GPS L1 C/A code signal. Real spaceborne data acquired by the GPS-R receiver on-board UK-DMC satellite is used to extract statistical properties of spaceborne GPS reflected signals.
DOI:	10.1109/GNSSR.2012.6408258