The Module Design of the CCD Payload System for a Microsat

• Main Authors: Yuan-Ting Chung, 鍾沅廷
• Other Authors: Zuu-Chang Hong
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/53784187840149864011

碩士 === 淡江大學 === 機械與機電工程學系碩士班 === 93 === The main objective of the thesis contains the briefly principal introduction and description upon establishing the image compression software, realizing the development on logical photograph functions and CMOS payload modules for the Microsat. In the meanwhile, the thesis content also indicate some statements and developing status that quite a few other nations on remote functional experiment and testification phase. As regards the compression section, the well-known photographic format will be adopted much more at probing the advantages and disadvantages around the technology; furthermore, the final decision will also be made to determinate what type of photographic formats using for the compressing photograph on OBC. In addition, the evaluated criteria , theory and the boundaries of region within the essentially logical photograph will be introduced when a satellite gets into a filming region; moreover, the differences, advantages and disadvantages between CMOS and CCD will be probed into the detail comparison. And then determinate what type of photograph modules will be used in developing process by the comparative divergences, similarities, the requirements of designated task and the chief considering conditions. Finally, detail description on selected modules and recently developing phase will be listed and point out. About the finite memory on OBC, the development of image compression software is useful for TUUSAT-1A. The development of this software increased much data that can save on OBC memory , and relative reduction much transmission time；According to the control logic requirement, the logical photograph functions were written in c language, and made that in the fly software；About the design of payload modules in this thesis, the payload volume and weight were more reduction then before. So the use of space is more convenient for a Microsat.