GNSS Reflectometry

GPS Scatterometry and Reflectometry are regarded as innovative remote sensing techniques in the field of altimetry, oceanography and glaciography. The high reflectivity of GPS signals in the frequency range of L-Band (1,2 and 1,6 GHz) on water as well as iced and snow covered surfaces partly compensates for the low signal intensity and allows the detection of reflected signal components. Part of the GFZ activities in GNSS reflectometry is performed within the GITWES research project. It covers a simulation study for a future satellite based tsunami warning systems using GPS Scatterometry and Reflectometry and activities related to the development of appropriate GPS receivers.

Fahrenberg Experiment
 - sorry, this document is so far only available in German -

GORS Receiver
Within the GITEWS project, the GFZ has set up a team consisting of GFZ, the German Aerospace Center (DLR) and JAVAD GNSS to adapt and extend their new generation GNSS receivers for advanced space applications.

GPS-SIDS (Sea Ice Dry Snow) GNSS-R Experiments in Greenland and Antarctica
 - sorry, this document is so far only available in German -

HALO - airborne GNSS remote sensing
 - sorry, this document is so far only available in German -

Feasibility study on tsunami detection from space
Within GITEWS a feasibility study is performed on tsunami detection and warning from space using GNSS reflectometry (GNSS-R). GNSS-R takes Global Navigation Satellite System signals, e.g., GPS, reflected from the sea surface as a measure of height of the reflecting surface.

MicroGEM - small satellite for GNSS remote sensing and gravimetry
 - sorry, this document is so far only available in German -

OpenGPS Prototype
 - sorry, this document is so far only available in German -

Zeppelin NT – airship-based GNSS remote sensing
 - sorry, this document is so far only available in German -

Overview of GNSS Reflectometry
GNSS (GPS,GALILEO,GLONASS) reflectometry belongs to the class of bistatic radar systems which can be used as a tool for Earth remote sensing.