Doppler shift analysis for enhanced satellite communication in low earth equatorial orbits

Ahmad, Yasser Asrul and Gunawan, Teddy Surya and Abdul Rahman, Abdul Izzat and Abdul Shukur, Hazrul Hafiz and Sanusi, Hilmi and Md Yusoff, Nelidya (2024) Doppler shift analysis for enhanced satellite communication in low earth equatorial orbits. In: 2024 IEEE 10th International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA), 30-31 July 2024, Bandung, Indonesia.

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Abstract

Satellite communications are crucial to the global telecommunications infrastructure, with approximately 2000 satellites orbiting Earth to relay analog and digital signals. These satellites, moving at an average speed of 27,358 km/h, induce Doppler frequency shifts that can significantly impact communication reliability. This study investigates the Doppler frequency shift across various carrier frequency bands (L, S, X, Ku, and Ka) in Low Earth Equatorial Orbit (LEEO) satellites. Utilizing Matlab simulations to model orbital paths at different altitudes, this research quantifies the Doppler shifts and corresponding rates for each frequency band. Results indicate a direct correlation between higher carrier frequencies and increased Doppler shifts, underscoring the need for effective Doppler compensation techniques to enhance communication link performance. The findings provide essential data for optimizing Phase Lock Loop (PLL) designs in transceivers, which is crucial for future satellite operations in equatorial regions.

Item Type:	Proceeding Paper (Invited Papers)
Uncontrolled Keywords:	Low Earth equatorial orbit, doppler frequency shift, satellite communication networks, Ka-band, Ku-band, Doppler rate analysis, phase lock loop optimization.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices > TK7885 Computer engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering
Depositing User:	Prof. Dr. Teddy Surya Gunawan
Date Deposited:	18 Nov 2024 11:07
Last Modified:	18 Nov 2024 11:07
URI:	http://irep.iium.edu.my/id/eprint/115853

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