Simulation and Analysis of GNSS-R Composite Waveforms Using GPS and Galileo Signals

Author

Pascual, D. ; Hyuk Park ; Camps, A. ; Arroyo, Alberto Alonso ; Onrubia, R.

Author_Institution

Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya Barcelona-Tech, Barcelona, Spain

Volume

7

Issue

5

fYear

2014

fDate

May-14

Firstpage

1461

Lastpage

1468

Abstract

Nowadays, several global navigation satellite system (GNSS) services coexist at L-band and some more will be available in the near future. These new signals were originally conceived to enhance the location accuracy, but they also offer a promising opportunity for improved GNSS-reflectometry (GNSS-R) retrievals. This work gives closed form expressions for GNSS-R waveform simulation using the composite GPS L1 and L5 and Galileo E1, E5, and E6 signals as function of the receiver bandwidth. The impact of the observation geometry and sea state on the waveform shape is studied in airborne and spaceborne conditions. Finally, the altimetric height bias using the derivative method is analyzed as function of the receiver bandwidth.

Keywords

remote sensing; satellite navigation; GNSS services; GNSS-R composite waveform analysis; GNSS-R composite waveform simulation; GNSS-R waveform simulation; GNSS-reflectometry retrievals; GPS L1 signal; GPS L5 signal; GPS signal; Galileo E1 signal; Galileo E5 signal; Galileo E6 signal; Galileo signal; L-band; airborne condition; altimetric height bias; global navigation satellite system; receiver bandwidth function; spaceborne condition; Bandwidth; Delays; Global Positioning System; Modulation; Receivers; Sea surface; Wind speed; Altimetry; global navigation satellite system reflectometry (GNSS-R); passive reflectometry and interferometry system (PARIS);

fLanguage

English

Journal_Title

Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of

Publisher

ieee

ISSN

1939-1404

Type

jour

DOI

10.1109/JSTARS.2014.2311116

Filename

6800024