Impact of DME/TACAN on GNSS L5/E5a Receiver

Axel Garcia-Pena, Christophe Macabiau, Olivier Julien, Mikael Mabilleau, Pierre Durel

Peer Reviewed

Abstract:	GNSS L5/E5a interference environment is dominated by DME/TACAN and JTIDS/MIDS pulses causing a degradation of the effective C/N0 observed by the receiver. A time-domain blanker is implemented to mitigate their impact. RTCA DO-292 proposes a model to compute the C/N0 degradation of the received useful signal by the increase of the noise PSD. This paper focuses on the impact of DME/TACAN RFI signals. Simulated results as well as predicted results are presented for US and Europe scenarios. The predicted results are calculated from an updated C/N0 degradation formula with respect to RTCA DO292 proposed formula. The impact of GNSS receiver RFFE filter bandwidth and blanker threshold are evaluated.
Published in:	Proceedings of the 2020 International Technical Meeting of The Institute of Navigation January 21 - 24, 2020 Hyatt Regency Mission Bay San Diego, California
Pages:	207 - 221
Cite this article:	Garcia-Pena, Axel, Macabiau, Christophe, Julien, Olivier, Mabilleau, Mikael, Durel, Pierre, "Impact of DME/TACAN on GNSS L5/E5a Receiver," Proceedings of the 2020 International Technical Meeting of The Institute of Navigation, San Diego, California, January 2020, pp. 207-221. https://doi.org/10.33012/2020.17207
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In