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Student Number 90623009
Author Chih-Hui Kuo(郭致輝)
Author's Email Address s0623009@cc.ncu.edu.tw
Statistics This thesis had been viewed 1804 times. Download 912 times.
Department Graduate Institute of Space Science
Year 2002
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title The diagnosis and analysis of the Ka Band Propagation Experiments on ROCSAT-1
Date of Defense 2003-06-05
Page Count 100
Keyword
  • Ka Band
  • ROCSAT
  • Abstract The diagnosis and analysis of the Ka Band Propagation Experiments on ROCSAT-1.Since January ,1999,ROCSAT-1 launched successfully,we have observed from ROCSAT at two ground stations for more than 3 years.This paper presented some statistic results of RGT and TGT.From 2000 ~ 2003,the lock on percentage of RGT is about 69%,and the lock on percentage of TGT is about 62%.
    Table of Content 目錄
    摘要…………………………………………………………………….Ⅰ
    圖表目錄……………………………………………………………….Ⅳ
    第一章 前言……………………………………………………………1
    第二章 理論基礎
      2-1 Ka波段電磁波傳播特性……………………………………...4
       2-1-1 大氣氣體的吸收所造成的衰減………………………...4
       2-1-2 降水粒子所造成的衰減………………………………...7
       2-1-3 雲層吸收所造成的衰減………………………………...8
       2-1-4 偏極化的損失…………………………………………...8
       2-1-5 對流層閃爍效應………………………………………...9
      2-2 大氣輻射儀之輻射傳遞理論………………………………...10
      2-3 自由空間衰減………………………………………………...16
    第三章 相關實驗儀器說明
      3-1 中華衛星一號簡介…………………………………………...19
      3-2 固定式與移動式地面接收站………………………………...22
       3-2-1 RGT與TGT地面系統簡介…………………………...22
       3-2-2 RGT與TGT之建構…………………………………...24
       3-2-3 觀測資料之取得……………………………………….25
       3-2-4 RGT與TGT輻射儀的校正……………………………25
      3-3 地面大氣微波輻射儀………………………………………...26
       3-3-1 微波輻射儀的簡介…………………………………….26
       3-3-2 輻射儀的校正方法…………………………………….28
      3-4 光學雨量計…………………………………………………...28
    第四章 實驗觀測結果與分析
      4-1 RGT radiometer校正與19.5GHz radiometer的協同觀測….30
       4-1-1 RGT radiometer校正前後時間序列圖………………...30
       4-1-2 RGT radiometer與19.5GHz radiometer之比對………32
       4-1-3 stand alone radiometer防水罩及RGT天線盤面水膜問題探討……………………………………………………..32
      4-2 RGT與TGT三年來觀測結果統計分析…………………….35
       4-2-1 RGT累積觀測時間與lock on比率…………………...35
       4-2-2 TGT累積觀測時間與lock on比率……………………39
       4-2-3 RGT及TGT重要元件故障說明………………………41
      4-3 衛星訊號lock on 比率與降雨率之比較……………………43
      4-4 衛星訊號與天空溫度的關係………………………………...44
      4-5 RGT天線追蹤衛星的方位角與仰角………………………..47
      4-6 TGT 2003年5月屏東實驗資料分析……………………….48
    第五章 結論與展望
      5-1 結論………………………………………………………...…50
      5-2 展望…………………………………………………………...54
    參考文獻………………………………………………………………..56
    圖表………………………………………………………………59 ~ 100
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    施順鵬,台灣地區人造衛星Ka波段傳播環境之建立與討論,碩士論文,國立中央大學,1996
    施順鵬,台灣地區Ka波段大氣傳播通道之研究,博士論文,國立中央大學,2002
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    Advisor
  • Yen-Hsyang Chu(朱延祥)
  • Files
  • 90623009.pdf
  • approve immediately
    Date of Submission 2003-06-19

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