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Galileo E5 Signal Acquisition using Intermediate Coherent Integration Time

Published online by Cambridge University Press:  08 February 2019

Jérôme Leclère Open the ORCID record for Jérôme Leclère [Opens in a new window]  and
René Landry Jr
Jérôme Leclère*
Affiliation:
(LASSENA, Electrical Engineering Departement, École de Technologie Supérieure (ÉTS), Montréal, Canada)
René Landry Jr
Affiliation:
(LASSENA, Electrical Engineering Departement, École de Technologie Supérieure (ÉTS), Montréal, Canada)
*
(E-mail: [email protected])
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Abstract

The acquisition of modern Global Navigation Satellite System (GNSS) signals may be difficult due to the presence of a secondary code. Indeed, short coherent integration times should be used without non-coherent integration, which implies a low sensitivity; or long coherent integration times should be used, requiring synchronisation with the secondary code and thus a full correlation, which implies a significant computational burden, especially for signals with long secondary codes such as the Galileo E5 signal. A third option that lies between the previous two is to perform a partial correlation using less than one secondary code period as input, however this is less efficient in terms of complexity than using an entire secondary code period, and the code's autocorrelation properties are completely changed. The authors recently proposed a method based on combining secondary code correlations, allowing the use of intermediate coherent integration times with the possibility to do non-coherent integrations, and the method was successfully applied to the Global Positioning System (GPS) L5 signal. This paper studies the application of the method to the Galileo E5 signal, compares it with the partial correlation method, and discusses the case where less than one secondary code period is used as an input

Keywords

AcquisitionComplexity reductionGalileo E5GNSSSecondary code
Type
Research Article
Information
The Journal of Navigation , Volume 72 , Issue 3 , May 2019 , pp. 555 - 574
Copyright
Copyright © The Royal Institute of Navigation 2019 

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Footnotes

This peer reviewed paper was presented at the RIN's International Navigation Conference at Bristol, UK, November 2018

References

REFERENCES

Akopian, D. (2005). Fast FFT based GPS satellite acquisition method. IEEE Radar, Sonar and Navigation, 152(4), 277–286.Google Scholar
Betz, J. (2015). Engineering satellite-based navigation and timing: Global navigation satellite systems, signals and receivers. Wiley-IEEE Press.Google Scholar
Borio, D. (2008). A statistical theory for GNSS signal acquisition. Ph.D. thesis, Politecnico di Torino, Italy.Google Scholar
Borio, D. (2011). M-sequence and secondary code constraints for GNSS signal acquisition. IEEE Transactions on Aerospace and Electronic Systems, 47(2), 928–945.Google Scholar
Borio, D., Fantino, M. and Lo Presti, L. (2008). The impact of the Galileo signal in space in the acquisition system. In Satellite Communications and Navigation Systems, Springer US.Google Scholar
Borre, K., Akos, D., Bertelsen, N., Rinder, P. and Jensen, S. (2007). A software-defined GPS and Galileo receiver. Single-frequency approach. Applied and Numerical Harmonic Analysis. Boston, MA: Birkhäuser.Google Scholar
Corazza, G., Palestini, C., Pedone, R. and Villanti, M. (2007). Galileo primary code acquisition based on multi-hypothesis secondary code ambiguity elimination. ION GNSS 2007, Fort Worth, TX, USA, 2459–2465.Google Scholar
De Wilde, W., Sleewaegen, J.-M., Simsky, A., Van Hees, J., Vandewiele, C., Peeters, E., Grauwen, J. and Boon, F. (2006). Fast signal acquisition technology for new GPS/Galileo receivers. IEEE PLANS, San Diego, CA, USA, 1074–1079.Google Scholar
European Union. (2016). European GNSS (Galileo) open service signal-in-space interface control document. Issue 1.3. www.gsc-europa.eu/electronic-library/programme-reference-documents.Google Scholar
Foucras, M. (2015). Performance analysis of modernized GNSS signal acquisition. Ph.D. thesis, INP Toulouse, France.Google Scholar
Foucras, M., Julien, O., Macabiau, C., Ekambi, B. and Bacard, F. (2016). Probability of detection for GNSS signals with sign transitions. IEEE Transactions on Aerospace and Electronic Systems, 52(3), 1296–1308.Google Scholar
Gaggero, P. O. (2008). Effect of oscillator instability on GNSS signal integration time signals. MSc thesis, University of Neuchâtel, Switzerland/University of Calgary, Canada.Google Scholar
Hegarty, C., Tran, M. and Van Dierendonck, A. (2003). Acquisition algorithms for the GPS L5 signal. ION GPS/GNSS 2003, Portland, OR, USA 165–177.Google Scholar
Kaplan, E.D. and Hegarty, C.J. (2017). Understanding GPS/GNSS: Principles and applications. 3rd edition, Artech House.Google Scholar
Leclère, J. (2014). Resource-efficient parallel acquisition architectures for modernized GNSS signals. Ph.D. thesis, École Polytechnique Fédérale de Lausanne, Switzerland.Google Scholar
Leclère, J. and Landry, R. Jr. (2016). Complexity reduction for high sensitivity acquisition of GNSS signals with a secondary code. ION GNSS + 2016, Portland, Oregon, USA, 436–443.Google Scholar
Leclère, J. and Landry, R. Jr. (2018). Combining secondary code correlations for fast GNSS signal acquisition. IEEE/ION PLANS 2018, Monterey, CA, USA, 46–55.Google Scholar
Leclère, J., Andrianarison, M. and Landry, R. Jr. (2017b). Efficient GNSS secondary code correlations for high sensitivity acquisition. ENC 2017, Lausanne, SwitzerlandGoogle Scholar
Leclère, J., Botteron, C. and Farine, P.-A. (2013). Comparison framework of FPGA-based GNSS signals acquisition architectures. IEEE Transactions on Aerospace and Electronic Systems, 49(3), 1497–1518.Google Scholar
Leclère, J., Botteron, C. and Farine, P.-A. (2014). Acquisition of modern GNSS signals using a modified parallel code-phase search architecture. Signal Processing, 95, 177–191.Google Scholar
Leclère, J., Botteron, C. and Farine, P.-A. (2017a). High sensitivity acquisition of GNSS signals with secondary code on FPGAs. IEEE Aerospace and Electronic Systems Magazine, 32(8), 46–63Google Scholar
Leclère, J., Botteron, C. and Farine, P.-A. (2017c). High sensitivity acquisition of GNSS signals with secondary code on FPGAs. IEEE Aerospace and Electronic Systems Magazine, 32(8), 46–63.Google Scholar
Leclère, J., Landry, R. Jr. and Botteron, C. (2018). Comparison of L1 and L5 bands GNSS signals acquisition. Sensors, 18(9), 2779.Google Scholar
Lo Presti, L., Zhu, X., Fantino, M. and Mulassano, P. (2009). GNSS signal acquisition in the presence of sign transition. IEEE Journal of Selected Topics in Signal Processing, 3(4), 557–570.Google Scholar
Mathis, H., Flammant, P. and Thiel, A. (2003). An analytic way to optimize the detector of a post-correlation FFT acquisition algorithm. ION GPS/GNSS 2003, Portland, OR, USA, 689–699.Google Scholar
Pany, T., Riedl, B., Winkel, J., Wörz, T., Schweikert, R., Niedermeier, H., Lagraste, S., López-Risueño, G. and Jiménez-Baños, D.F. (2009). Coherent integration time: The longer, the better. Inside GNSS, 4(6), 52–61.Google Scholar
Shivaramaiah, N., Dempster, A. and Rizos, C. (2008). Exploiting the secondary codes to improve signal acquisition performance in Galileo receivers. ION GNSS 2008, Savannah, GA, USA, 1497–1506.Google Scholar
Spangenberg, S.M. and Povey, G.J.R. (1998). Code acquisition for LEO satellite mobile communication using a serial-parallel correlator with FFT for Doppler estimation. CSDSP, Sheffield, UKGoogle Scholar
Van Diggelen, F. (2009). A-GPS: Assisted GPS, GNSS, and SBAS. Artech House.Google Scholar
Van Diggelen, F. (2014). Who's your daddy? Why GPS will continue to dominate consumer GNSS. Inside GNSS, 9(2), 30–41.Google Scholar
Yang, C., Hegarty, C. and Tran, M. (2004). Acquisition of the GPS L5 signal using coherent combining of I5 and Q5. ION GNSS, 2184–2195.Google Scholar
Ziedan, N. and Garrison, J.L. (2004). Unaided acquisition of weak GPS signals using circular correlation or double-block zero padding. IEEE PLANS, Monterey, CA, USA, 461–470.Google Scholar