GPS Interference Problems in Germany

Felix Butsch

Abstract:	The goal of the work described here was to search for interference sources that could pose a threat to the application of GPS for automatic airport approach and landing of aircraft. For this purpose field measurements were conducted in the vicinity of airports, radar facilities and other radio frequency transmitters throughout Germany, and interference resistance measurements of commercial GPS receivers were taken. The paper presents a short description of the theoretical background of interference problems. After this, it describes the test configurations which were used for laboratory- and field-measurements. Also it shows typical power spectra of interference sources measured in the field which are compared with interference resistance versus frequency curves determined in the laboratory. Furthermore the effects of the interference signals on the GPS measurements are discussed.
Published in:	Proceedings of the 53rd Annual Meeting of The Institute of Navigation (1997) June 30 - 2, 1997 Albuquerque, NM
Pages:	59 - 67
Cite this article:	Butsch, Felix, "GPS Interference Problems in Germany," Proceedings of the 53rd Annual Meeting of The Institute of Navigation (1997), Albuquerque, NM, June 1997, pp. 59-67.
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