Acquisition and tracking of Galileo IOV E5 signals: experimental results and performance evaluation

• Autorzy: Margaria D. , Fantino M. , Musumeci L.
• Języki publikacji: EN

Abstrakty

EN

An assessment of the Galileo In-Orbit Validation (IOV) signals on the E5 band is presented in this paper, investigating the signal features compared with the expected characteristics as described in the Galileo Interface Control Document (ICD) specifications. In detail, the results in terms of signal acquisition and tracking during multiple satellite passes are discussed, providing also a description of the experimental setup used in order to separately receive and process E5a and E5b signals. The analysis covers the received signal strength versus the satellite elevation, the modulation format, and the presence of navigation data and secondary code chips. Since at time of writing both the two Galileo IOV satellites (PFM and FM2) are broadcasting E5 signals, the results obtained processing their E5a and E5b signals are discussed. In addition, these signals are also compared with those currently transmitted by the two experimental Galileo satellites, GIOVE-A and GIOVE-B.

Słowa kluczowe

EN

Galileo; validation; signal-in-space

• Wydawca: Polskie Forum Nawigacyjne
• Czasopismo: Annual of Navigation
• Rocznik: 2012
• Tom: No. 19, part 1
• Strony: 105--120
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Margaria D.

• Navigation Technologies Research Area, Istituto Superiore Mario Boella, Italy

autor

Fantino M.

• Navigation Technologies Research Area, Istituto Superiore Mario Boella, Italy

autor

Musumeci L.

• Dept. of Electronics and Telecommunications, Politecnico di Torino, Italy

Bibliografia

• [1] CelesTrack website, NORAD Two-Line Element Sets, current data for Galileo satellites, available at: http://www.celestrak.com/NORAD/elements/galileo.txt, URL accessed on April 12, 2012.
• [2] Dovis F. et al., NavSAS Group Acquires, Tracks Second Galileo IOV Satellite, GPS World website, Top Story, January 17, 2012, available at: http://www.gpsworld.com/gnss-system/galileo/news/navsas-group-acquires-trackssecond-galileo-iov-satellite-12517.
• [3] Fantino M., Molino A., Nicola M., N-Gene GNSS Receiver: Benefits of Software Radio in Navigation, in Proc. of ENC GNSS 2009, Naples, Italy, May 2009.
• [4] Galileo (European GNSS) Open Service Signal in Space Interface Control Document (OS SIS ICD), Issue 1, Revision 1, September 2010, available at: http://ec.europa.eu/enterprise/policies/satnav/galileo/open-service/index_en.htm.
• [5] GIOVE-A+B Navigation Signal In Space Interface Control Document, GIOVE-A+B Public SIS ICD, ESA-DTEN-NG-ICD/02837, Issue 1, Revision 1, August 8, 2008, available at: http://www.giove.esa.int/.
• [6] Lestarquit L., Artaud G., Issler J.-L., AltBOC for Dummies or Everything You Always Wanted to Know About AltBOC, in Proc. of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), pp. 961-970, Savannah, GA, September 2008.
• [7] Lo Presti L., Motella B., The math of ambiguity: what is the acquisition ambiguity function and how is it expressed mathematically?, in Inside GNSS, Vol. June 2010, pp. 20-28.
• [8] Margaria D., Mulassano P., Dovis F., Receiver, method and corresponding computer program product for demodulating AltBOC-modulated signals, European Patent EP 2012488 B1, Application No. 07425412.9, July 05, 2007.
• [9] Margaria D., Dovis F., Mulassano P., Galileo AltBOC Signal Multiresolution Acquisition Strategy, IEEE Aerospace and Electronic Systems Magazine, Vol. 23, No. 11, pp.4-10.
• [10] NavSAS Group, Contact! - First Acquisition and Tracking of IOV Galileo Signals, Inside GNSS, January/February Issue, 2012, Vol. 7, No. 1, pp. 46-55.
• [11] Soellner M., Erhard P., Comparison of AWGN Code Tracking Accuracy for Alternative-BOC, Complex-LOC and Complex-BOC Modulation Options in Galileo E5-Band, in Proc. of ENC GNSS 2003, Graz, Austria, April 2003.