Software-Defined Radio Direct Correlation GNSS Reflectometry by Means of GLONASS
Journal article, 2016

Ground-based GNSS reflectometry (GNSS-R) systems can be realized by different means. The concept of correlation between direct and reflected GNSS signals is basically possible with all GNSS systems. However, using signals from the Russian GLONASS system simplifies the signal processing so that software-defined radio (SDR) components can be used at replace expensive hardware solutions. This paper discusses how such a solution, called GLONASS-R, can be realized using entirely off-the-shelf components. Field tests with such a system demonstrate the capability to monitor sea surface heights with a precision of 3 cm or better even with a sampling rate of 1.5 Hz. The flexibility of a SDR and the simple concept of GLONASS-R allow build such a system with low costs and adapt it to the needs of any ground-based GNSS-R problem.

Receivers

Correlation

Real-time systems

Signal processing

Satellites

Graphics processing units

Delays

Author

Thomas Hobiger

Chalmers, Earth and Space Sciences, Onsala Space Observatory

Chalmers, Earth and Space Sciences, Space Geodesy and Geodynamics

Rüdiger Haas

Chalmers, Earth and Space Sciences, Space Geodesy and Geodynamics

Chalmers, Earth and Space Sciences, Onsala Space Observatory

Johan Löfgren

Chalmers, Earth and Space Sciences, Space Geodesy and Geodynamics

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

1939-1404 (ISSN)

Vol. 9 10 4834-4842 7425137

Subject Categories

Other Earth and Related Environmental Sciences

Geophysics

Oceanography, Hydrology, Water Resources

Climate Research

Signal Processing

Roots

Basic sciences

Infrastructure

Onsala Space Observatory

DOI

10.1109/JSTARS.2016.2529683

More information

Created

10/7/2017