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Impact of Wi-Fi Interference on NavIC Signal


Affiliations
1 Electronics Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat 395 007, India
 

The Navigation with Indian Constellation (NavIC) designed by the Indian Space Research Organisation (ISRO) is an autonomous regional satellite navigation system for providing accurate real-time positioning and timing services to India up to 1500 km from its boundary. The NavIC system exploits L5- and S-band for its navigation. The performance of these bands may be interfered by other bands or out-of-band communication systems, which can be the main threat to the performance of the NavIC receiver. This article focuses on real-time out-of-band interference of Wi-Fi signals in the S-band of the NavIC receiver. The performance analysis is carried out with respect to power spectral density, histograms, execution of acquisition stage and parameters of hypothesis testing method like P-value, confidence interval to identify the presence of interference on the NavIC receiver. All these results show that the Wi-Fi signal transmission represents a potential source of interference for NavIC applications and causes severe degradation on NavIC satellite signals.

Keywords

Power Spectral Density, Radio Frequency Interference, Satellite Navigation System, Wi-Fi Signals.
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  • Dovis, F., GNSS Interference Threats and Counter Measures, Artech House, 2015, pp. 22–38.

  • Jagiwala, D. D. et al., Study of L5 band interferences on IRNSS. In Proceedings of GNSS User Meet, Bangalore, India, 2015, p. 45.

  • Baghel, S. K., Ingale, M. A. and Goyal, G., Coexistence possibilities of LTE with ISM technologies and GNSS. In IEEE National Conference on Communication, Bangalore, India, 2011, pp. 1–5.

  • Mateu, I. et al., Exploration of possible GNSS signals in S-band. In Proceedings of the 22nd International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2009), Savannah, GA, pp. 1573–1587.

  • Soualle, F. et al., Assessment on the use of S-band for combined navigation and communication. In Proceedings of the 24th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2011), September 2011, pp. 1219–1223.

  • Landry, R. J., and Renard, A., Analysis of potential interference sources and assessment of present solutions for GPS/GNSS receivers. In 4th Saint Petersburg International Conference on Integrated Navigation Systems, 1997, pp. 1–13.

  • Marti, L. and van Graas, F., Bias detection and its confidence assessment in global positioning system signals. In IEEE Aerospace Conference, Big Sky, MT, USA, 2004, 1418–1431.

  • Balaei, A. and Dempster, A., A statistical inference technique for GPS interference detection. IEEE Trans. Aerosp. Electron. Syst., 2009, 45(4), 1499–1511.

  • Tani, A. and Fantacci, R., Performance evaluation of a precorrelation interference detection algorithm for the GNSS based on non-parametrical spectral estimation. IEEE Syst. J., 2008, 2(1), 20–26.

  • Peck, R., Olsen, C. and Devore, J. L., Introduction to Statistics and Data Analysis, Cengage Learning, 2015, pp. 577–683.

  • IRNSS signal in space ICD August 2017, ISRO-ISAC V1.1; http://www.isro.gov.in/irnss-programme/

  • Desai, M. V., Jagiwala, D. and Shah, S. N., Impact of dilution of precision for position computation in Indian Regional Navigation Satellite System. In International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2016, pp. 980–986.

  • Fadaei, N., Detection, characterization and mitigation of GNSS jamming interference using pre-correlation methods. Ph D dissertation, University of Calgary, Canada, 2016, p. 48.

  • Isoz, O., Interference detection and localization in the GPS L1 frequency band. Ph D dissertation, Lulea University of Technology, Sweden, 2012, pp. 11–12.


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  • Impact of Wi-Fi Interference on NavIC Signal

Abstract Views: 286  |  PDF Views: 72

Authors

Darshna D. Jagiwala
Electronics Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat 395 007, India
Shweta N. Shah
Electronics Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat 395 007, India

Abstract


The Navigation with Indian Constellation (NavIC) designed by the Indian Space Research Organisation (ISRO) is an autonomous regional satellite navigation system for providing accurate real-time positioning and timing services to India up to 1500 km from its boundary. The NavIC system exploits L5- and S-band for its navigation. The performance of these bands may be interfered by other bands or out-of-band communication systems, which can be the main threat to the performance of the NavIC receiver. This article focuses on real-time out-of-band interference of Wi-Fi signals in the S-band of the NavIC receiver. The performance analysis is carried out with respect to power spectral density, histograms, execution of acquisition stage and parameters of hypothesis testing method like P-value, confidence interval to identify the presence of interference on the NavIC receiver. All these results show that the Wi-Fi signal transmission represents a potential source of interference for NavIC applications and causes severe degradation on NavIC satellite signals.

Keywords


Power Spectral Density, Radio Frequency Interference, Satellite Navigation System, Wi-Fi Signals.

References





DOI: https://doi.org/10.18520/cs%2Fv114%2Fi11%2F2273-2280