Real-time GIOVE Signal Performance Using STFT Based Excision Method in the Presence of Interference

Ayse Sicramaz Ayaz, Roland Bauernfeind , Thomas Pany, Jae Gyu Jang, Bernd Eissfeller

Abstract:	Various interference mitigation methods are required within the Global Navigation Satellite System (GNSS) receiver, especially for Safety of Life applications where integrity and accuracy of the position is significant. For this purpose, International Civil Aviation Organization [6] provides requirements stating that the estimated received signal sensitivity should be above the minimum required sensitivity depending on the desired signal characteristics and no loss of lock on carrier phase tracking occurs in the receiver. In this study, the capability of Short Time Fourier Transform (STFT) based mitigation algorithm that is used against both pulsed and narrowband interference is discussed and its real-time tracking performance with several precorrelation techniques is compared. With real pulsed interference, 0.35 dB and with continuous wave interference of -110 dBW around 4 dB gain has been achieved.
Published in:	Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011) September 20 - 23, 2011 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	1969 - 1974
Cite this article:	Ayaz, Ayse Sicramaz, Bauernfeind, Roland, Pany, Thomas, Jang, Jae Gyu, Eissfeller, Bernd, "Real-time GIOVE Signal Performance Using STFT Based Excision Method in the Presence of Interference," Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011), Portland, OR, September 2011, pp. 1969-1974.
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