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

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.

[1]  Manuel Martín-Neira,et al.  GEROS-ISS: GNSS REflectometry, Radio Occultation, and Scatterometry Onboard the International Space Station , 2016, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

[2]  Manuel Martín-Neira,et al.  Altimetric Analysis of the Sea-Surface GPS-Reflected Signals , 2010, IEEE Transactions on Geoscience and Remote Sensing.

[3]  M. Martín-Neira.  A pasive reflectometry and interferometry system (PARIS) application to ocean altimetry , 1993 .

[4]  Manuel Martín-Neira,et al.  PARIS Interferometric Technique proof of concept: Sea surface altimetry measurements , 2012, 2012 IEEE International Geoscience and Remote Sensing Symposium.

[5]  Manuel Martín-Neira,et al.  Altimetry with GNSS-R interferometry: first proof of concept experiment , 2012, GPS Solutions.

[6]  G. Jourdain,et al.  Use of large bandwidth‐duration binary phase shift keying signals in target delay Doppler measurements , 1991 .

[7]  Daniel Pascual,et al.  Improvement of the PAU/PARIS End-to-end Performance Simulator (P2EPS) in preparation for upcoming GNSS-R missions , 2013, 2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS.

[8]  Markku Renfors,et al.  Complex double-binary-offset-carrier modulation for a unitary characterisation of Galileo and GPS signals , 2006 .

[9]  Adriano Camps,et al.  Correction of the Sea State Impact in the L-Band Brightness Temperature by Means of Delay-Doppler Maps of Global Navigation Satellite Signals Reflected Over the Sea Surface , 2008, IEEE Transactions on Geoscience and Remote Sensing.

[10]  Hyuk Park,et al.  GNSS-R Derived Centimetric Sea Topography: An Airborne Experiment Demonstration , 2013, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

[11]  Stephen J. Katzberg,et al.  Wind speed measurement using forward scattered GPS signals , 2002, IEEE Trans. Geosci. Remote. Sens..

[12]  Jean-Claude Auber,et al.  Characterization of Multipath on Land and Sea at GPS Frequencies , 1994 .

[13]  C. Zuffada,et al.  2‐cm GPS altimetry over Crater Lake , 2001 .

[14]  C. Zuffada,et al.  2‐cm GPS altimetry over Crater Lake , 2001 .

[15]  C. Zuffada,et al.  An ocean-altimetry measurement using reflected GPS signals observed from a low-altitude aircraft , 2000, IGARSS 2000. IEEE 2000 International Geoscience and Remote Sensing Symposium. Taking the Pulse of the Planet: The Role of Remote Sensing in Managing the Environment. Proceedings (Cat. No.00CH37120).

[16]  Manuel Martín-Neira,et al.  The PARIS concept: an experimental demonstration of sea surface altimetry using GPS reflected signals , 2001, IEEE Trans. Geosci. Remote. Sens..

[17]  Antonio Rius,et al.  A GPS-Reflections Receiver That Computes Doppler/Delay Maps in Real Time , 2007, IEEE Transactions on Geoscience and Remote Sensing.

[18]  Manuel Martin-Neira,et al.  Sea surface state measured using GPS reflected signals , 2002 .

[19]  G. Ruffini,et al.  The Eddy Experiment: Accurate GNSS‐R ocean altimetry from low altitude aircraft , 2004, physics/0406025.

[20]  Valery U. Zavorotny,et al.  Scattering of GPS signals from the ocean with wind remote sensing application , 2000, IEEE Trans. Geosci. Remote. Sens..

[21]  C. Zuffada,et al.  5‐cm‐Precision aircraft ocean altimetry using GPS reflections , 2002 .

[22]  Stephen J. Katzberg,et al.  Detection of ocean reflected GPS signals: theory and experiment , 1997, Proceedings IEEE SOUTHEASTCON '97. 'Engineering the New Century'.

[23]  Christopher Buck,et al.  Experimental Results of an X-Band PARIS Receiver Using Digital Satellite TV Opportunity Signals Scattered on the Sea Surface , 2014, IEEE Transactions on Geoscience and Remote Sensing.

[24]  Shuanggen Jin,et al.  Remote sensing using GNSS signals: Current status and future directions , 2011 .

[25]  Manuel Martín-Neira,et al.  The PARIS Ocean Altimeter In-Orbit Demonstrator , 2011, IEEE Transactions on Geoscience and Remote Sensing.

[26]  Hyuk Park,et al.  Using GNSS-R Imaging of the Ocean Surface for Oil Slick Detection , 2013, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.