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Analysis of fading effects due to ionospheric scintillations using modern GNSS signals observed at northern low latitude station

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Title: Analysis of fading effects due to ionospheric scintillations using modern GNSS signals observed at northern low latitude station

Authors: Miriyala Sridhar, Tirumalasetti Uday Bhaskar, Akkala Leela Prasanna, B. Rohit

Journal: ARPN Journal of Engineering and Applied Sciences

HEC Recognition History
Category From To
Y 2023-07-01 2024-09-30
Y 2022-07-01 2023-06-30
Y 2021-07-01 2022-06-30
X 2020-07-01 2021-06-30

Publisher: Khyber Medical College, Peshawar

Country: Pakistan

Year: 2016

Volume: 11

Issue: 15

Language: English

Categories
Electrical Engineering (5972) Telecommunications (1862) GNSS (3) Signal Propagation (8) Ionospheric Scintillation (1)

Abstract

The major threat to Global navigational system’s signal availability, accuracy, and processing is the signal fading caused due to ionospheric scintillations. In this paper the triple –frequency data of GPS signal collected at Koneru Lakshmaiah University, Guntur, India is processed to analyze the signal fading characteristics of GPS signal bands. Ionospheric scintillation parameter known as fade duration is calculated using GPS C/N0 measurements. It is observed that maximum fade duration is about 90 sec. It is evident that the L5 signal fading intensity is low as compared to L1 and L2 signals. The outcome of this work would be useful for developing inter-frequency aiding algorithms used in signal tracking and reacquisition in future GNSS receivers.

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