Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali

The attributes of 1U CubeSat which are small mechanical size, light in weight, and low power supply, have been the constraints for selecting an imaging mission system. As the result, 1U CubeSat is usually attached with an imaging sensor that suits based on its limitations without putting the high-re...

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Main Author:	Ali, Fatimah Zaharah
Format:	Thesis
Language:	English
Published:	2023
Subjects:	Geomorphology Landforms Terrain
Online Access:	https://ir.uitm.edu.my/id/eprint/76072/2/76072.pdf
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id	my-uitm-ir.76072
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spelling	my-uitm-ir.760722023-08-09T08:31:48Z Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali 2023 Ali, Fatimah Zaharah Geomorphology. Landforms. Terrain The attributes of 1U CubeSat which are small mechanical size, light in weight, and low power supply, have been the constraints for selecting an imaging mission system. As the result, 1U CubeSat is usually attached with an imaging sensor that suits based on its limitations without putting the high-resolution imagery as a vital consideration. Imaging system with high number of pixels that produces high resolution imagery requires high power and usually comes in bigger size due to the outrages processing requirements. To solve the issue, an imaging system with high ground resolution that is associated with low ground sampling distance (GSD) was designed to be practical for the application of 1U CubeSat. To strategize the design and development of the imaging system, the main components of the imaging system were optimally and feasibly chosen based on 1U CubeSat's derived limitations, followed by selection of suitable optical device with longer focal length that contributed to lower GSD value, and verification of space application and imagery output in terms of GSD. As the BIRDS CubeSats Project was considered as reference for its space heritage, the space application was set at 380 to 400 km working distance, and thus, 16 m GSD imagery was acquired when the selected 5 MP CMOS imaging sensor was applied with 35 mm focal length lens. The result led to the small swath area that allowed the imaging sensor to focus on the small element of the target area. The functionality, integration, and space environment tests were successfully performed to ensure the develop imaging mission system was qualified for space application. As for imagery validation through RGB and SNR analysis, it showed that the distribution of red colour decreased including the SNR with the implementation of IR Cut Filter that removed IR ray from entering the imaging sensor. This research proved that lU-sized CubeSat was capable of having a high ground resolution imaging system when the GSD was reduced through the focal length of the optical lens. The works have contributed to the multination collaborative ASEANSAT project which was the continuation of 1U CubeSat development in Malaysia. 2023 Thesis https://ir.uitm.edu.my/id/eprint/76072/ https://ir.uitm.edu.my/id/eprint/76072/2/76072.pdf text en public phd doctoral Universiti Teknologi Mara (UiTM) College of Engineering Jusoh, Mohamad Huzaimy
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Jusoh, Mohamad Huzaimy
topic	Geomorphology Landforms Terrain
spellingShingle	Geomorphology Landforms Terrain Ali, Fatimah Zaharah Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali
description	The attributes of 1U CubeSat which are small mechanical size, light in weight, and low power supply, have been the constraints for selecting an imaging mission system. As the result, 1U CubeSat is usually attached with an imaging sensor that suits based on its limitations without putting the high-resolution imagery as a vital consideration. Imaging system with high number of pixels that produces high resolution imagery requires high power and usually comes in bigger size due to the outrages processing requirements. To solve the issue, an imaging system with high ground resolution that is associated with low ground sampling distance (GSD) was designed to be practical for the application of 1U CubeSat. To strategize the design and development of the imaging system, the main components of the imaging system were optimally and feasibly chosen based on 1U CubeSat's derived limitations, followed by selection of suitable optical device with longer focal length that contributed to lower GSD value, and verification of space application and imagery output in terms of GSD. As the BIRDS CubeSats Project was considered as reference for its space heritage, the space application was set at 380 to 400 km working distance, and thus, 16 m GSD imagery was acquired when the selected 5 MP CMOS imaging sensor was applied with 35 mm focal length lens. The result led to the small swath area that allowed the imaging sensor to focus on the small element of the target area. The functionality, integration, and space environment tests were successfully performed to ensure the develop imaging mission system was qualified for space application. As for imagery validation through RGB and SNR analysis, it showed that the distribution of red colour decreased including the SNR with the implementation of IR Cut Filter that removed IR ray from entering the imaging sensor. This research proved that lU-sized CubeSat was capable of having a high ground resolution imaging system when the GSD was reduced through the focal length of the optical lens. The works have contributed to the multination collaborative ASEANSAT project which was the continuation of 1U CubeSat development in Malaysia.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Ali, Fatimah Zaharah
author_facet	Ali, Fatimah Zaharah
author_sort	Ali, Fatimah Zaharah
title	Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali
title_short	Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali
title_full	Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali
title_fullStr	Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali
title_full_unstemmed	Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali
title_sort	design of low ground sampling distance (gsd) imaging system payload for 1u-sized cubesat application / fatimah zaharah ali
granting_institution	Universiti Teknologi Mara (UiTM)
granting_department	College of Engineering
publishDate	2023
url	https://ir.uitm.edu.my/id/eprint/76072/2/76072.pdf
_version_	1783736098885730304

Design of low ground sampling distance (GSD) imaging system payload for 1U-sized CubeSat application / Fatimah Zaharah Ali

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