GNSS-R遙測技術的工程應用

10.6653/MoCICHE.202202_49(1).0004

賴郡曄；林遠見

GNSS-R ； 環境遙測 ； 土壤含水量

土木水利

49卷1期（2022 / 02 / 01）

21 - 26

繁體中文

由於環境監測技術的進步，透過地球觀測衛星遙測的方式，以進行大範圍分析或探勘地表環境資源已是重要的趨勢。其中，全球衛星導航系統（GNSS）所發射的L波段訊號，除了用於定位、導航和計時外，藉由分析其直射與反射訊號的變化，同樣可作為觀測地球環境的工具，這種技術即稱為GNSS-R。GNSS-R技術因全球衛星導航系統覆蓋範圍廣、近即時的特性，不管是在海洋、陸地或是冰川，對於全球環境監測都是一個良好的方式。本文透過文獻探討的方式，介紹了GNSS-R技術的原理、方法以及近年來相關的嶄新應用層面，例如海平面高度觀測、海水表面風場推算、地表土壤含水量或冰川冰層厚度等等。

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