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[國防科技] 成大解析北韓火箭影像
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[國防科技] 成大解析北韓火箭影像
分類標籤: 科技文摘
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[國防科技] 成大解析北韓火箭影像
北韓發射運載火箭，引起國際注目，國家太空中心自（2009年）3月28日就密集拍攝朝鮮半島，直到4月5日止，總共拍到4張清晰影像。其中又以4月5日上午火箭發射前一小時所拍攝的影像最具代表性。國立成功大學地球科學系衛星資訊暨地球環境研究所劉正千副教授，應用所發展的影像自動處理系統產製了兩公尺解析度的彩色融合影像，並與美國商用衛星 Quick Bird 於2003年4月3日所拍攝的衛星影像相互比較，解析北韓舞水端里基地這6年來所增加的設施。再結合美國麻省理工學院（MIT）彈道演算之模擬結果，運用 Google Earth 平台呈現了一系列北韓舞水端里基地設施，以及火箭彈道模擬之立體影像，深入剖析北韓舞水端里基地火箭發射事件對日本及美國所造成的威脅。
圖1：劉正千副教授處理2009/4/5福衛二號遙測影像完成兩公尺解析度的彩色融合影像，並與美國商用衛星 Quick Bird2003/4/3影像比對，可以看出北韓舞水端里基地新增許多設施（紅色圈起為新增）。
圖2：將2009/4/5兩公尺解析度的福衛二號彩色融合影像與Google Earth平結合，以立體方式呈現火箭發射場附近地形起伏變化。
圖3：利用美國麻省理工學院(MIT)在網路上所公布的彈道計算模式，模擬火箭發射後飛行之軌跡。
圖4：模擬北韓火箭發射後飛行之立體照片，紅色直線為火箭彈道，藍色直線是民航客機航線。
圖5：火箭發射後朝東海向日本上空飛行，第一節燃料筒墜入東海後(白色區塊1)，火箭繼續飛越日本上空。火箭最後墜入3000公里以外之北太平洋(白色區塊2) 。
圖6：若將彈道繼續延伸，將可以達到夏威夷地區。
深入資訊：
成功大學校園新聞 2009/04/08
[Defense-Tech] National Cheng Kung University Processes Images of North Korean Rocket
North Korea's rocket launching draws much international tensity. Since 28th-Mar. (2009) on, National Space Organization (NSPO) kept taking pictures of Chosun Peninsula. Up to 5th-Apr., four clear images have been taken. The image taken one hour earlier than the launching on 5th-Apr. is especially remarkable. Associate Professor Cheng-Chien LIU (Dept. of Earth Sciences, National Cheng Kung University) uses his own image processing system to produce a color fused image with 2-meter resolution, and has it contrasted with American commercial satellite Quick Bird's old satellite picture of the same area (taken on 3rd-Apr., 2003) in order to analyze the new constructions in Musudan-ri within the six years. With MIT's simulation result of trajectory calculations, LIU presents the construction details in the rocket site Musudan-ri and the 3D image of the simulated trajectory of the rocket. The potential impact of the rocket launching in Musudan-ri, North Korea, on the safety of Japan and the United States is vividly shown.
Picture 1: C.-C. LIU's color fused image, adopting NSPO's image (5th-Apr., 2009) in contrast with Quick Bird's (3rd-Apr. ,2003), shows the new construction in Musudan-ri (in red circles).
Picture 2: The combination of C.-C. LIU's fused image and Google Earth shows the terrain around the rocket site in 3D image.
Picture 3: Applying the model of trajectory simulation by MIT, the trajectory course is shown.
Picture 4: Simulated 3D image of the trajectory of the launched rocket. Trajectory in red, civil aviation course in blue.
Picture 5: Rocket passing by toward the air of Japan. After the first section of fuel tank is out and dropped in the East Ocean (white zone 1), the rocket crosses over Japan and finally falls in North Pacific Ocean (white zone 2) 3000 km away from Musudan-ri.
Picture 6: if the trajectory could be extended further, it would reach Hawaii.
Further Information:
National Cheng Kung University Campus News 2009/04/08 (in Chinese)
北韓發射運載火箭，引起國際注目，國家太空中心自（2009年）3月28日就密集拍攝朝鮮半島，直到4月5日止，總共拍到4張清晰影像。其中又以4月5日上午火箭發射前一小時所拍攝的影像最具代表性。國立成功大學地球科學系衛星資訊暨地球環境研究所劉正千副教授，應用所發展的影像自動處理系統產製了兩公尺解析度的彩色融合影像，並與美國商用衛星 Quick Bird 於2003年4月3日所拍攝的衛星影像相互比較，解析北韓舞水端里基地這6年來所增加的設施。再結合美國麻省理工學院（MIT）彈道演算之模擬結果，運用 Google Earth 平台呈現了一系列北韓舞水端里基地設施，以及火箭彈道模擬之立體影像，深入剖析北韓舞水端里基地火箭發射事件對日本及美國所造成的威脅。
深入資訊：
成功大學校園新聞 2009/04/08
[Defense-Tech] National Cheng Kung University Processes Images of North Korean Rocket
North Korea's rocket launching draws much international tensity. Since 28th-Mar. (2009) on, National Space Organization (NSPO) kept taking pictures of Chosun Peninsula. Up to 5th-Apr., four clear images have been taken. The image taken one hour earlier than the launching on 5th-Apr. is especially remarkable. Associate Professor Cheng-Chien LIU (Dept. of Earth Sciences, National Cheng Kung University) uses his own image processing system to produce a color fused image with 2-meter resolution, and has it contrasted with American commercial satellite Quick Bird's old satellite picture of the same area (taken on 3rd-Apr., 2003) in order to analyze the new constructions in Musudan-ri within the six years. With MIT's simulation result of trajectory calculations, LIU presents the construction details in the rocket site Musudan-ri and the 3D image of the simulated trajectory of the rocket. The potential impact of the rocket launching in Musudan-ri, North Korea, on the safety of Japan and the United States is vividly shown.
Further Information:
National Cheng Kung University Campus News 2009/04/08 (in Chinese)
Edited 5 time(s). Last edit at 04/09/2009 06:41PM by gustav.
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