On wave radar measurement
On wave radar measurement
复制标题
对波雷达测量
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
P. Jonathan
中科院分区：
文献类型：
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作者：
K. Ewans;G. Feld;P. Jonathan
SAAB REX WaveRadar传感器广泛用于海上石油和天然气行业的平台波浪测量系统。它以相对较低的操作成本提供现场地面高程波测量。此外，采样率有足够的灵活性，原则上允许从1至10赫兹的采样频率，但由于微波波束角宽度为10°，并且隐含的海洋表面足迹在米数量级，可能会对空间和时间分辨率产生重大限制。事实上，有报道称，波雷达测量的准确性可能不如预期的那么好。我们使用数值模拟来回顾WaveRadar的功能，以更好地了解WaveRadar估计与已知地表高度的比较。此外，根据预期功能和数值模拟，我们回顾了最近使用WaveRadar在最大采样频率下进行的现场测量，并将SAAB雷达与北海位置的浮标测量结果进行了相互比较。
The SAAB REX WaveRadar sensor is widely used for platform-based wave measurement systems by the offshore oil and gas industry. It offers in situ surface elevation wave measurements at relatively low operational costs. Furthermore, there is adequate flexibility in sampling rates, allowing in principle sampling frequencies from 1 to 10 Hz, but with an angular microwave beam width of 10° and an implied ocean surface footprint in the order of metres, significant limitations on the spatial and temporal resolution might be expected. Indeed there are reports that the accuracy of the measurements from wave radars may not be as good as expected. We review the functionality of a WaveRadar using numerical simulations to better understand how WaveRadar estimates compare with known surface elevations. In addition, we review recent field measurements made with a WaveRadar set at the maximum sampling frequency, in the light of the expected functionality and the numerical simulations, and we include inter-comparisons between SAAB radars and buoy measurements for locations in the North Sea.