超高速光電毫米波近單週期脈衝產生器應用於三維高解析度毫米波雷達影像系統

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姓名	陳緯(Chen, Wei) 查詢紙本館藏	畢業系所	電機工程學系
論文名稱	超高速光電毫米波近單週期脈衝產生器應用於三維高解析度毫米波雷達影像系統 (Ultra-Fast Photonic Few-Cycle Millimeter-Wave Short Pulse Generator for 3-D High Resolution Radar Imaging System)
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摘要(中)	在雷達影像系統中，為了增加其雷達可探測距離，往往必須使用大型的真空元件行波管，除了造成系統的龐大，其超高瞬間功率也可能因反射或串音而影響系統的穩定度，甚至造成損害。因此我們認為若能把訊號源的部分以光電方式產生，必定能改善其系統之輸入輸出問題與穩定度。同時我們也利用光電的方式產生了最窄脈衝寬度30 ps 的超窄毫米波脈衝，並將其應用於雷達影像系統中而得到了高達1 cm 的時間解析度，也在此論文實驗中完成了三維高解析度毫米波雷達影像系統。經由此雷達影像系統，我們也成功掃描出了一隱藏在信封中的金屬飛鏢模型，和一高低差較複雜之金屬圖案模型。相信此方法將能有很好的應用於安檢用高速近場掃描。
摘要(英)	In order to increase the available distance of radar system, vacuum devices like magnetron or traveling wave tube are usually used in radar system to create the required power. These devices usually make the system very huge and the huge power they created might reflect or crosstalk and then decrease the system reliability. By use of our ultra-fast few-cycle millimeter-wave short pulse generator to generate pulse in optical way, we can provide a more reliable system. Besides, we can also generate a short pulse with 30 ps pulse width and get the 1 cm temporal resolution in radar imaging system. With this high resolution, we build a 3-D high resolution radar imaging system and get two images successfully. One is a metal dart model in an envelope, to simulate the security check situation. The other is a more complicated metal model: angry bird. With this success, we think this method can have more and better applications in near field image scanning.
關鍵字(中)	★ 雷達影像 ★ 毫米波	關鍵字(英)	★ Radar Imaging ★ Millimeter-Wave
論文目次	摘要 ..................................................... i Abstract ................................................ ii 致謝 ................................................... iii 目錄 ..................................................... v 圖目錄 ................................................. vii 表目錄 ................................................... x 第一章緒論 .............................................. 1 1-1 毫米波和雷達系統的發展與應用 ........................... 1 1-2 雷達影像系統 ......................................... 6 1-3 論文動機與架構 ....................................... 10 第二章超高速光電毫米波近單週期脈衝產生器 ................... 11 2-1 光電毫米波近單週期脈衝產生 ............................. 11 2-2 近彈道單載子傳輸光偵測器的高速偏壓調制 .................. 13 2-2.1 單載子傳輸光偵測器工作原理 ........................... 13 2-2.2 近彈道單載子傳輸光偵測器工作原理 ..................... 16 2-2.3 高速偏壓調制與開關切換 .............................. 18 2-3 光電毫米波脈衝產生器底座設計與製程 ..................... 21 2-3.1 光偵測器之覆晶接合準備製程 .......................... 21 2-3.2 底座電路之設計與製程 ................................ 22 2-4 底座與元件之覆晶接合 .................................. 27 第三章實驗量測系統與結果 ................................. 29 3-1 元件產生之脈衝特性量測 ................................ 29 3-2 元件產生之脈衝的傳輸特性量測 ........................... 33 3-3 雷達影像解析度量測..................................... 37 3-4 雷達影像實物量測 ..................................... 40 3-5 量測結果總結 ......................................... 44 第四章未來研究方向與結論 ................................. 46 4-1 全光學式偏壓調制 ..................................... 46 4-2 近場安檢高速掃描 ..................................... 48 4-3 結論 ................................................ 50 參考文獻 ................................................ 51 附錄 .................................................... 54 電阻製程 ................................................. 54
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指導教授	許晉緯	審核日期	2012-10-9
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博碩士論文 995201009 詳細資訊