Design and validation of an adaptive CubeSat transmitter system

CubeSat in low earth orbit (LEO) primarily uses an amateur radio-band transmitter with a fixed specification. Nevertheless, the LEO satellite does not have an orbital velocity that equates to one sidereal day. Therefore, the ground station antenna views the satellite at different elevation angles...

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Main Authors:	Jaswar, Fitri Dewi, Al-Samman, Ahmed M., Abd Rahman, Tharek, Ahmad, Yasser Asrul
Format:	Article
Language:	English English English
Published:	Elsevier B.V. 2019
Subjects:	TK5101 Telecommunication. Including telegraphy, radio, radar, television TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices TL787 Astronautics
Online Access:	http://irep.iium.edu.my/72902/ http://irep.iium.edu.my/72902/ http://irep.iium.edu.my/72902/ http://irep.iium.edu.my/72902/1/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat.pdf http://irep.iium.edu.my/72902/7/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat%20transmitter%20system_scopus.pdf http://irep.iium.edu.my/72902/13/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat_WOS.pdf

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spelling	iium-729022019-12-10T03:29:43Z http://irep.iium.edu.my/72902/ Design and validation of an adaptive CubeSat transmitter system Jaswar, Fitri Dewi Al-Samman, Ahmed M. Abd Rahman, Tharek Ahmad, Yasser Asrul TK5101 Telecommunication. Including telegraphy, radio, radar, television TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices TL787 Astronautics CubeSat in low earth orbit (LEO) primarily uses an amateur radio-band transmitter with a fixed specification. Nevertheless, the LEO satellite does not have an orbital velocity that equates to one sidereal day. Therefore, the ground station antenna views the satellite at different elevation angles which result in varied propagation path lengths. In this paper, an adaptive transmitter is designed to optimise the LEO satellite communication link and overcome the variability of the propagation path length issue due to different ground station elevation angles. A satellite communication link and operation analyses are performed to identify the relationship between the variation of the elevation angle so as to determine the optimum signal-to-noise ratio (SNR), improve data rate and increase the power efficiency of an adaptive link. Based on the results, a model is developed to control the adaptive configuration. The SNR and power consumption performance of the developed transmitter is compared with commercial transmitters. The results indicate that the transmitter output power is adjustable from 0.5W to 1 W, and the data rate is selectable between 9600 bps and 19,200 bps. Compared to other CubeSat transmitters, the developed adaptive transmitter demonstrates more than 20% improvement in terms of SNR optimisation, additional throughput and power reduction. Elsevier B.V. 2019-05-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/72902/1/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat.pdf application/pdf en http://irep.iium.edu.my/72902/7/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat%20transmitter%20system_scopus.pdf application/pdf en http://irep.iium.edu.my/72902/13/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat_WOS.pdf Jaswar, Fitri Dewi and Al-Samman, Ahmed M. and Abd Rahman, Tharek and Ahmad, Yasser Asrul (2019) Design and validation of an adaptive CubeSat transmitter system. International Journal of Electronics and Communications (AEÜ), 108. pp. 118-126. ISSN 1434-8411 https://www.sciencedirect.com/science/article/pii/S143484111832689X https://doi.org/10.1016/j.aeue.2019.05.019
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TK5101 Telecommunication. Including telegraphy, radio, radar, television TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices TL787 Astronautics
spellingShingle	TK5101 Telecommunication. Including telegraphy, radio, radar, television TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices TL787 Astronautics Jaswar, Fitri Dewi Al-Samman, Ahmed M. Abd Rahman, Tharek Ahmad, Yasser Asrul Design and validation of an adaptive CubeSat transmitter system
description	CubeSat in low earth orbit (LEO) primarily uses an amateur radio-band transmitter with a fixed specification. Nevertheless, the LEO satellite does not have an orbital velocity that equates to one sidereal day. Therefore, the ground station antenna views the satellite at different elevation angles which result in varied propagation path lengths. In this paper, an adaptive transmitter is designed to optimise the LEO satellite communication link and overcome the variability of the propagation path length issue due to different ground station elevation angles. A satellite communication link and operation analyses are performed to identify the relationship between the variation of the elevation angle so as to determine the optimum signal-to-noise ratio (SNR), improve data rate and increase the power efficiency of an adaptive link. Based on the results, a model is developed to control the adaptive configuration. The SNR and power consumption performance of the developed transmitter is compared with commercial transmitters. The results indicate that the transmitter output power is adjustable from 0.5W to 1 W, and the data rate is selectable between 9600 bps and 19,200 bps. Compared to other CubeSat transmitters, the developed adaptive transmitter demonstrates more than 20% improvement in terms of SNR optimisation, additional throughput and power reduction.
format	Article
author	Jaswar, Fitri Dewi Al-Samman, Ahmed M. Abd Rahman, Tharek Ahmad, Yasser Asrul
author_facet	Jaswar, Fitri Dewi Al-Samman, Ahmed M. Abd Rahman, Tharek Ahmad, Yasser Asrul
author_sort	Jaswar, Fitri Dewi
title	Design and validation of an adaptive CubeSat transmitter system
title_short	Design and validation of an adaptive CubeSat transmitter system
title_full	Design and validation of an adaptive CubeSat transmitter system
title_fullStr	Design and validation of an adaptive CubeSat transmitter system
title_full_unstemmed	Design and validation of an adaptive CubeSat transmitter system
title_sort	design and validation of an adaptive cubesat transmitter system
publisher	Elsevier B.V.
publishDate	2019
url	http://irep.iium.edu.my/72902/ http://irep.iium.edu.my/72902/ http://irep.iium.edu.my/72902/ http://irep.iium.edu.my/72902/1/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat.pdf http://irep.iium.edu.my/72902/7/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat%20transmitter%20system_scopus.pdf http://irep.iium.edu.my/72902/13/72902_Design%20and%20validation%20of%20an%20adaptive%20CubeSat_WOS.pdf
first_indexed	2023-09-18T21:43:22Z
last_indexed	2023-09-18T21:43:22Z
_version_	1777413288169046016

Design and validation of an adaptive CubeSat transmitter system

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