AIRBORNE SENSOR SYSTEMS 
Prof. Dr.-Ing. Gunther Schanzer 
Dipl.-Ing. Detlef Kayser 
Institute for Flight Guidance 
Technical University of Braunschweig 
GERMANY 
Tel.: ( ); Fax: ( ) 
ABSTRACT 
In the present time the field of navigation is undergoing a 
revolutionary development. There are three major technology 
aspects that lead to this leap in performance of todays navigation 
systems: 
- the introduction of satellite navigation (GPS/GLONASS) 
- the development of a new generation of inertial sensors 
(e.g. sensors on the chip) 
- the increased computer capabilities that allow complex 
real time calculations 
Especially in airborne applications the new technologies will lead 
to systems that can achieve centimetre accuracy in all three 
dimensions, in all phases of flight at very low prices compared to 
todays avionic equipment. 
The Institute for Flight Guidance from the Technical University of 
Braunschweig operates a twin engined research aircraft that is 
equipped with a satellite based navigation system. The paper will 
present the basic structure of this integrated navigation system 
and give examples of various applications of the system and show 
the achieved performance. Special emphasis will be given to the 
least results in long range differential (over 400km range) 
experiments and the possibilities to use GLONASS, the Russian 
counterpart to GPS. The Institute for Flight Guidance is also 
doing research on new, low cost inertial sensor packages that are 
based on gyro on the chip technology. By error modelling and 
inflight calibration techniques it is planned to significantly 
improve the performance of this sensor class. The test philosophy 
and first test results will be presented in the paper. 
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Résumé 
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