vii berichte von fachinstituten an universitäten und technischen

362 Fachinstitute an Universitäten und Hochschulen
PROFESSOR OF GEODESY
Prof. Dr.-Ing. Guenter W. Hein
SECRETARIAT
Penni Grigat
Antje Tucci
GALILEO/
GNSS-2
J.-Á. Avila Rodriguez
Stefan Wallner
Felix Kneißl
Baerbel Deisting
Organization chart and major research groups
Facilities
GNSS RECEIVER
DEVELOPMENT
Dr. Thomas Pany
Dr. Jong-Hoon Won
Roland Kaniuth
Ayse Sicramaz Ayaz
Daniel Sanroma
Marco Anghileri
Carsten Stöber
Isabelle Krämer
The Institute of Geodesy and Navigation has its own
GNSS/INS Laboratory ("Geodaetische Messkuppel") where
the instruments are operated and maintained. The tasks of
the Laboratory include practical tests, permanent measurements
and experiments related to the research projects as
well as testing and calibration of sensors. A broad range of
GNSS equipment is available at the institute and can be
divided into static/permanent, field and real-time kinematic
receivers.
Equipment of the GNSS/INS laboratory of the Institute of Geodesy
and Navigation.
A GPS Reference Station is operated as an aid for several
projects using a dual-frequency Ashtech Z-Sensor together
with a choke ring antenna having a highly stable antenna
phase centre by its Dorne Margoline dipole elements. Other
SENSOR
FUSION
Andreas Teuber
Herbert Niedermeier
Gerald Ameres
Maria Bento
PROFESSOR OF NAVIGATION
Prof. Dr.-Ing. Bernd Eissfeller
GNSS/INS LABORATORY
Dr.-Ing. Torben Schüler
Manfred Häusler
PRECISE
POSITIONING
Bernd Zimmermann
Yaw Poku-Gyamfi
Eva Schüler
receivers like the NovAtel MiLLennium OEM3 (L1/L2 and
WAAS/EGNOS) and OEM4 can be easily set-up for
reference station tasks, and European Septentrio PolaRx
2-frequency receivers (L1/L2, WAAS/EGNOS) are also
usable as reference receivers. Most of these devices can also
be set up for field campaign jobs and, additionally, Trimble
4000 SSE receivers with integrated data logging can be
employed for such tasks. Finally, several receiver pairs are
capable of real-time positioning in range- or carrier phasedifferential
mode, e.g. the NovAtel OEM4-RT and the
NAVCOM NCT-2000D offering a high accuracy of 5 to 10
mm. The latest receiver in this category is a Trimble 5800
RTK rover which has a GPS/WAAS/EGNOS capability.
It is a dual frequency receiver with 24 channels.
Data communication is either realized via the University
Intranet by fibre optic wire or via wireless telemetry links.
Several telemetry systems are available in order to enable
real-time positioning. A wide-range system (25 W transmission
power, transmission frequency near 400 MHz, up
to 80 km transmission range) and several short-range
systems (1 mW up to 1 W, spread spectrum systems at 900
MHz and conventional telemetry at 400 MHz) are in use.
Moreover, a wireless local area network with several access
points (roaming capabilities included) at a frequency of 2.4
GHz is used to provide network communications where no
wire-LAN is available.
The institute owns a L1 GPS hardware simulator STR 4760
of GSS (Global Simulation Systems, now Spirent) that is
used for hardware in-the-loop testing as well as for the
receiver calibration (e.g. inter-channel biases).