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研究生： 鄭凱倫
Kai-Lun Cheng
論文名稱： 中央大學地面系統設計、整測與驗證
指導教授： 張起維
Loren C. Chang
口試委員:
學位類別： 碩士
Master
系所名稱： 地球科學學院 - 太空科學與工程學系
Department of Space Science and Engineering
論文出版年： 2022
畢業學年度： 110
語文別： 中文
論文頁數： 113
中文關鍵詞： 飛鼠號立方衛星 、衛星地面站 、最小高斯頻移鍵控
外文關鍵詞： IDEASSat, Satellite Ground Station, GMSK
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    • 飛鼠號立方衛星(IDEASSat)是一顆由台灣國家太空中心資助，由國立中央大學(NCU)開發的3U大小的立方衛星，其任務為對地球電離層進行現地量測，以量化電離層變化與小尺度的電離層不規則體。飛鼠號立方衛星已於2021年1月24日由SpaceX的Falcon 9 Block 5 (Transporter-1)發射成功，於2021年9月2日宣布退役，並於任務期間成功接收上傳的指令、下傳飛行資料，用以提供研究與未來任務的經驗學習。
    中央大學衛星地面站位於中央大學健雄館10樓，擁有UHF頻段上傳和下載能力與S頻段下載能力，主要提供IDEASSat與INSPIRE聯盟衛星，監測與操作使用。
    本論文將介紹與討論中央大學衛星地面站的設計與測試過程，主要包含通訊鏈路估算、通訊硬體選用、軟體無線電、衛星資料編碼與使用者介面的設計與軟體整合，以及地面站接收成果與IDEASSat和地面站在開發時遇到的挑戰與經驗學習。

    The Ionospheric Dynamics Exploration and Attitude Subsystem Satellite (IDEASSat) is a 3U CubeSat which has been funded in part by the Taiwan National Space Organization (NSPO) and developed by National Central University (NCU), Taiwan. IDEASSat was developed to provide in-situ measurements of the Earth’s ionosphere to quantify ionospheric variability and irregularities. IDEASSat was successfully launched aboard the SpaceX Falcon 9 Block 5 launch vehicle (Transporter-1) on January 24th, 2021 and decommissioned on September 2nd, 2021. During the mission duration, IDEASSat received uplinked commands, and downlinked flight data successfully to provide information on the on-orbit performance of the spacecraft for evaluation and experience for future missions.
    The NCU satellite ground station is located on the 10th floor of the Chien-Shiung building. The NCU ground station has the capability to transmit in the UHF band and receive in the UHF band and S band, and provides control and monitoring services for spacecraft developed under the International Satellite Program in Research and Education (INSPIRE) consortium.
    The thesis will introduce and discuss the design and implementation of the NCU satellite ground station. The thesis includes the link budget, communication hardware, software defined radio (SDR), satellite telemetry and command coding, user interface design and integration, flight performance results of the NCU ground station, as well as the challenges and lessons learned in the development of the NCU ground station.

    摘要 V ABSTRACT VI 目錄 VII 圖目錄 IX 表目錄 XI 一、 緒論 1 1.1 立方衛星 1 1.2 地面系統 1 1.3 飛鼠號立方衛星(IDEASSAT) 6 1.4 CSIM-FD立方衛星 8 1.5 中央大學地面系統 9 二、 地面系統設計 10 2.1 接收與傳送射頻設備 12 2.1.1 天線 12 2.1.2 天線轉動機構 14 2.1.3 傳送設備 16 2.1.4 接收設備-UHF頻段 25 2.1.5 接收設備-S頻段 38 2.2 衛星遙傳追蹤指令站(TT&C) 41 2.2.1 加碼與飛鼠號立方衛星指令協議 41 2.2.2 解碼與資料恢復軟體 43 2.2.3 資料轉換軟體 53 2.2.4 衛星追蹤軟體 59 2.3 任務操作與控制中心(MOCC) 61 三、通訊鏈路評估 66 3.1 發射端評估 66 3.2 傳輸環境評估 66 3.2.1 傳輸損失 66 3.2.2 雜訊影響 69 3.3 接收端評估 71 3.3.1 天線指向誤差 71 3.3.2 雜訊溫度與雜訊指數 71 3.3.3 資料傳輸需求 72 3.4 UHF頻段鏈路評估 73 3.5 S頻段鏈路評估 78 四、地面系統整測 79 4.1 信標封包接收測試 79 4.1.1 TRX-U傳輸測試 79 4.1.2 遠距離接收測試 82 4.2 衛星指令發射測試 85 4.2.1 衛星指令內容測試 85 4.2.2 遠距離發射測試 86 4.3 科學資料下傳測試 87 五、地面系統驗證 91 5.1 中央大學地面站接收能力驗證 91 5.2 飛鼠號指令上傳報告 97 六、討論與總結 98 參考文獻 100

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