Advances in GNSS-R altimetry

Since the nadir 1-second altimetry precision was first estimated to be of 56 cm when the PARIS concept was developed back in 1993 (it was assumed the interferometric processing of GPS P-code signals and a 4×4 m×m receiving antenna at 700 km orbital altitude) [1], many detailed analyses and experiments have been conducted leading to far more optimistic values, as low as some 15 cm (using the interferometric processing and a 1 m2antenna from 400 km altitude). This paper presents the instrument and concept advances that have allowed such improved expectations.

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

[3]  Manuel Martín-Neira,et al.  Modeling and Analysis of GNSS-R Waveforms Sample-to-Sample Correlation , 2014, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

[4]  Manuel Martín-Neira,et al.  Optimization and Performance Analysis of Interferometric GNSS-R Altimeters: Application to the PARIS IoD Mission , 2014, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

[5]  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.

[6]  Jamila Beckheinrich,et al.  Sea surface topography retrieved from GNSS reflectometry phase data of the GEOHALO flight mission , 2014 .

[7]  Manuel Martín-Neira,et al.  Revisiting the GNSS-R Waveform Statistics and Its Impact on Altimetric Retrievals , 2018, IEEE Transactions on Geoscience and Remote Sensing.

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

[9]  Manuel Martín-Neira,et al.  The Impact of Inter-Modulation Components on Interferometric GNSS-Reflectometry , 2016, Remote. Sens..

[10]  James L. Garrison.  Modeling and simulation of bin-bin correlations in GNSS-R waveforms , 2012, 2012 IEEE International Geoscience and Remote Sensing Symposium.