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Linking SAR and hydro-problem. 詹明勇 義守 大學 土木系 2011-05-06. SAR 成像幾何. 雷達. Radio detection and ranging 原本的意思是「無線電波偵測及測距」。最初發展雷達偵測技術的時候,地表的反射回波往往是不受歡迎的雜訊,必須想辦法消除才能看清楚受測目標。後來雷達被安裝在飛機及人造衛星上,地表的反射回波才變成有用的資訊,方可了解地表地形。. - PowerPoint PPT Presentation
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SAR in hydroscience
Linking SAR and hydro-problem 2011-05-061SAR
2Radio detection and ranging3Pulse LengthAntenna Beam Width4(Range DirectionAzimuth Direction
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8AperturePhysicalSynthetic9Real Aperture Radar, RAR R 10Synthetic Aperture Radar, SARSAR Doppler ShiftUp-shiftedDown-shifted11
12SAR RAR SAR RAR 13SAR Fore ShorteningLayoverShadow
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Fore Shortening16
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Layover18
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Shadow20
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221970 -- NASA1978 -- NASA JPL (SEASAT)1992 --1994 -- NASA JPL + Space borne Imaging Radar , SIR SIR-C/X-SAR
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242526SAR SAR 27 SAR 28
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31()3233