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系統識別號 U0002-1808200815151900
中文論文名稱 微衛星通訊星系設計
英文論文名稱 Design of Micro-satellite Constellation for Communication
校院名稱 淡江大學
系所名稱(中) 機械與機電工程學系碩士班
系所名稱(英) Department of Mechanical and Electro-Mechanical Engineering
學年度 96
學期 2
出版年 97
研究生中文姓名 張博鈞
研究生英文姓名 Bo-Jyun Chang
學號 695371616
學位類別 碩士
語文別 中文
口試日期 2008-07-14
論文頁數 45頁
口試委員 指導教授-洪祖昌
委員-陳彥升
委員-陳正興
委員-吳宗達
委員-趙志民
中文關鍵字 衛星軌道  衛星星系  Walker星系 
英文關鍵字 orbit  constellation,  Walker constellation 
學科別分類 學科別應用科學機械工程
中文摘要 本文主要探討通訊星系以對稱型及不對稱型星系設計,任務需求以台灣為中心,模擬半徑1000公里,做軌道高度800及1500公里,並延伸半徑範圍:分別為500 km、1000km、1500 km、2000km、2500 km任務範圍探討;以及利用不對稱方式的高低配單一傾角及利用圓軌道的特性、傾角的變化做星系設計,以衛星高度800公里搭配衛星高度1500公里,分析各不同半徑範圍,探討最少衛星顆數之差異性。
得知軌道高度800km時,傾角30゚、31゚、33゚、 34゚時,滿足任務需求即時通訊,衛星顆數最少為27顆以及軌道高度1500km時,傾角32°到37°時,需15顆衛星即可滿足任務需求即時通訊;當半徑範圍為500km、1000km、1500km時較不適合採用不對稱型來設計,反觀,半徑2000km、2500km時,採用高低配的單一傾角模擬及依據圓軌道特性使傾角的變化下,衛星顆數有減並滿足任務求,即時通訊。
英文摘要 This paper focus on Micro-satellite Constellation for Communication and use symmetry and asymmetry to design. The mission requirement take Taiwan as a center and design radius 1000 km to make the simulation the circular of orbital altitude 800 and 1500 km. And discuss radius 500km、1000km、1500km、2000km and 2500km . Also the attempt use asymmetrical way's height matches makes the constellations design. As well as the use asymmetrical way's height matches the sole inclination angle and the use circular orbit characteristic, the inclination angle change makes the constellation design. By satellite altitude 800 km matching satellite altitude 1500 km. Analyzes each different radius scope and difference of the discussion least satellite number.
When orbital altitude 800km and the inclination angle is 30°、31°、33°、34°. The satellites number are 27 to satisfy the requirement. Similarly orbital altitude 1500km at inclination angle 32° to 37°needs 15 satellites satisfy. When the radius scope is 500km、1000km、100km does not unavailability use asymmetry to design, reviews, when radius 2000km 、2500km uses the sole inclination angle simulation which the height matches and based on the circular orbit characteristic causes the inclination angle under the change, a satellite number has reduces and satisfies.
論文目次 目錄......................................................I
表目錄..................................................III
圖目錄...................................................IV
符 號 說 明...............................................V
第一章 序論...............................................1
1-1 前言..................................................1
1-2 研究動機與目的 ........................................7
第二章 衛星軌道特性與種類.................................8
2-1二體運動與克普勒定律...................................8
2-2 軌道六元素...........................................10
2-3軌道擾亂..............................................12
2-4衛星軌道的種類........................................12
第三章 衛星星系概論......................................15
3-1覆蓋類型..............................................15
3-2衛星星系參數設定......................................18
3-3衛星星系設計準則......................................20
第四章 衛星任務與星系設計................................21
4-1任務目標..............................................21
4-2通訊衛星星系設計步驟..................................22
4-2-1通訊品質的考量......................................22
4-2-2軌道與傾角之決定....................................23
4-2-3衛星涵蓋面積範圍....................................25
4-2-4衡量覆蓋效率........................................30
4-2-5 Walker星系設計方法.................................30
4-2-6模擬任務實例........................................31
4-2-6.1對稱型衛星星系設計............................... 31
4-2-6.2不對稱型衛星星系設計............................. 36
第五章 結論與未來展望....................................37
附表一...................................................40
附表二...................................................41
參考文獻.................................................43
表目錄
表3-1參數設定............................................19
表 4-1不同特性軌道類型...................................24
表4-2仰角5°、仰角10°比較.................................35
表4-3 仰角5°、軌道高度=800km.............................35
表4-4 仰角5°、軌道高度=1500km............................36
圖目錄
圖1 三顆即可做涵蓋全球中低緯度地區........................6
圖2-1 二體運動............................................9
圖2-2典型的軌道六元素....................................11
圖2-3軌道種類............................................13
圖3-1單一軌道連續涵蓋街道示意圖..........................17
圖4-1衛星天線場型過大................................... 26
圖4-2衛星天線場型過小....................................26
圖4-3依水平仰角選取天線場型............................. 27
圖4-4水平仰角為0度覆蓋面積.............................. 28
圖4-5仰角為5度衛星覆蓋面積...............................29
圖4-6台灣為中心涵蓋範圍..................................33
圖4-7仰角5°及半徑1000公里、衛星傾角和衛星顆數分佈........34
圖4-8衛星低軌道800km搭配1500km使用單一傾角模擬...........38
圖4-9衛星低軌道800km搭配1500km依據圓軌道特性使傾角的變化下
模擬................................................38


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