Analysis of Ionospheric Scintillations using GPS and NavIC Combined Constellation
Received: 17 March 2023 | Revised: 19 April 2023 | Accepted: 21 April 2023 | Online: 2 June 2023
Corresponding author: Shiva Kumar Nimmakayala
Abstract
The disturbances and irregularities in the ionosphere are the primarily recognized ramifications of space weather called scintillations. Irregularities in the electron densities are the source of the ionospheric scintillations. This article investigates the ionospheric scintillations, which are predominant in the trans-equatorial and equatorial regions. Based on the data from a multi-constellation Global Navigation Satellite Systems (GNSS) receiver at the Chaitanya Bharathi Institute of Technology Hyderabad, the relationship between the amplitude scintillation index S4 and the rate of change of total electron content (ROTI) is examined. The correlation coefficient between S4 and ROTI is demonstrated in this article. The outcome validates the usefulness of the ROTI in identifying the scintillations.
Keywords:
Global Navigation Satellite Systems (GNSS), ionospheric scintillations, rate of change of total electron content, amplitude scintillation indexDownloads
References
S. K. Pagoti and S. I. D. Vemuri, "Development and performance evaluation of Correntropy Kalman Filter for improved accuracy of GPS position estimation," International Journal of Intelligent Networks, vol. 3, pp. 1–8, Jan. 2022. DOI: https://doi.org/10.1016/j.ijin.2022.01.002
Ch. Rajasekhar, V. B. S. Srilatha Indira Dutt, and G. Sasibhushana Rao, "Weighted GDoP for improved position accuracy using NavIC and GPS hybrid constellation over Indian sub-continent," International Journal of Intelligent Networks, vol. 2, pp. 42–45, Jan. 2021. DOI: https://doi.org/10.1016/j.ijin.2021.06.001
O. M. Mubarak, "The Effect of Carrier Phase on GPS Multipath Tracking Error," Engineering, Technology & Applied Science Research, vol. 10, no. 5, pp. 6237–6241, Oct. 2020. DOI: https://doi.org/10.48084/etasr.3578
T. L. Dammalage, "The Effect of Multipath on Single Frequency C/A Code Based GPS Positioning," Engineering, Technology & Applied Science Research, vol. 8, no. 4, pp. 3270–3275, Aug. 2018. DOI: https://doi.org/10.48084/etasr.2206
A. Hussain, F. Akhtar, Z. H. Khand, A. Rajput, and Z. Shaukat, "Complexity and Limitations of GNSS Signal Reception in Highly Obstructed Enviroments," Engineering, Technology & Applied Science Research, vol. 11, no. 2, pp. 6864–6868, Apr. 2021. DOI: https://doi.org/10.48084/etasr.3908
P. Sirish Kumar, V. B. S. Srilatha Indira Dutt, and L. Ganesh, "Implementation of new navigation algorithm based on cross-correntropy for precise positioning in low latitude regions of South India," International Journal of Speech Technology, vol. 23, no. 4, pp. 747–756, Dec. 2020. DOI: https://doi.org/10.1007/s10772-020-09727-6
O. E. Abe, Y. O. Migoya-Orué, and S. M. Radicella, "Correlation analysis of normalized ROTI and S4 as observed during different geomagnetic conditions of the 2013 September equinox over the stations within EIA African sector," Advances in Space Research, Oct. 2022. DOI: https://doi.org/10.1016/j.asr.2022.09.058
S. Mulugeta and T. Kassa, "Nighttime ionospheric irregularities inferred from Rate of Total Electron Content Index (ROTI) values over Bahir Dar, Ethiopia," Advances in Space Research, vol. 67, no. 4, pp. 1261–1266, Feb. 2021. DOI: https://doi.org/10.1016/j.asr.2020.11.030
T. K. Gogie, "The Rate of Ionospheric Total Electron Content Index (ROTI) as a Proxy for Nighttime Ionospheric Irregularity Using Ethiopian Low-Latitude GPS Data," Geomagnetism and Aeronomy, vol. 61, no. 3, pp. 464–475, May 2021. DOI: https://doi.org/10.1134/S0016793221030051
C. Li, C. M. Hancock, N. A. S. Hamm, S. V. Veettil, and C. You, "Analysis of the Relationship between Scintillation Parameters, Multipath and ROTI," Sensors, vol. 20, no. 10, Jan. 2020, Art. no. 2877. DOI: https://doi.org/10.3390/s20102877
K. Kotulak, I. Zakharenkova, A. Krankowski, I. Cherniak, N. Wang, and A. Fron, "Climatology Characteristics of Ionospheric Irregularities Described with GNSS ROTI," Remote Sensing, vol. 12, no. 16, Jan. 2020, Art. no. 2634. DOI: https://doi.org/10.3390/rs12162634
W. Li, S. Song, and X. Jin, "Ionospheric Scintillation Monitoring With ROTI From Geodetic Receiver: Limitations and Performance Evaluation," Radio Science, vol. 57, no. 5, 2022, Art. no. e2021RS007420. DOI: https://doi.org/10.1029/2021RS007420
D. Zhao, W. Li, C. Li, C. M. Hancock, G. W. Roberts, and Q. Wang, "Analysis on the ionospheric scintillation monitoring performance of ROTI extracted from GNSS observations in high-latitude regions," Advances in Space Research, vol. 69, no. 1, pp. 142–158, Jan. 2022. DOI: https://doi.org/10.1016/j.asr.2021.09.026
Q. Li, Y. Zhu, K. Fang, and J. Fang, "Statistical Study of the Seasonal Variations in TEC Depletion and the ROTI during 2013–2019 over Hong Kong," Sensors, vol. 20, no. 21, Jan. 2020, Art. no. 6200. DOI: https://doi.org/10.3390/s20216200
Ming O. U., Jiayan W. U., Longjiang C., and Weimin Z., "Global Ionospheric TEC and ROTI Variations during a Moderate Geomagnetic Storm," Chinese Journal of Space Science, vol. 41, no. 6, pp. 887–897, Nov. 2021. DOI: https://doi.org/10.11728/cjss2021.06.887
X. Luo, S. Gu, Y. Lou, L. Cai, and Z. Liu, "Amplitude scintillation index derived from C/N0 measurements released by common geodetic GNSS receivers operating at 1 Hz," Journal of Geodesy, vol. 94, no. 2, Feb. 2020, Art. no. 27. DOI: https://doi.org/10.1007/s00190-020-01359-7
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Copyright (c) 2023 Shiva Kumar Nimmakayala, Bala Sai Srilatha Indira Dutt Vemuri
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