5-cm-precision aircraft ocean altimetry using GPS reflections
5-cm-precision aircraft ocean altimetry using GPS reflections
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DOI：
10.1029/2002gl014759
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发表时间：
2002-05-15
影响因子：
5.2
通讯作者：
LaBrecque, JL
中科院分区：
文献类型：
--
作者：
Lowe, ST;Zuffada, C;LaBrecque, JL
[1]我们提出了前两个飞机的全球定位系统（GPS）反射测高测量，最精确的GPS海洋测高测量，并证明了测高精度和空间分辨率必要的中尺度涡图。我们的第一个实验演示了14厘米精度的单卫星海洋测高测量，而我们最近的实验演示了5厘米的测高精度与5公里的空间分辨率。新的结果表明，由于改进的建模，更大的飞机高度和速度，改进的接收机定位，以及更好的实验控制，我们以前的努力有了显着的改善。计划进一步减少斑点和完善模型，以获得5厘米的高度精度。
[1] We present the first two aircraft Global Positioning System (GPS)-reflection altimetry measurements, the most precise GPS ocean-altimetry measurement, and demonstrate the altimetric precision and spatial resolution necessary to map mesoscale eddies. Our first experiment demonstrated a 14-cm precision single-satellite ocean altimetry measurement while our more recent experiment demonstrates 5 cm altimetric precision with 5-km spatial resolution. The new results show significant improvement over our previous effort, due to improved modeling, greater aircraft altitudes and velocities, improved receiver positioning, and better experimental control. Plans to further reduce speckle and refine models to obtain 5-cm altimetric accuracy are presented.