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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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  • Impact of Wi-Fi Interference on NavIC Signal

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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