Shallow Angle Wave Profiling Lidar

M. R. Belmont; J. M. K. Horwood; R. W. F. Thurley; J. Baker

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Shallow Angle Wave Profiling Lidar

机译：浅角波仿形激光雷达

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A lidar scanning system is described that is primarily designed to measure sea wave shape. The device is capable of measuring real-time spatial profiles over distances of hundreds of meters, and as the lidar must inevitably operate from modest elevations (e.g., from a vessel's masthead), it is inherently a very shallow angle metrology device. This results in a highly nonuniform distribution of the wave elevation values. The vertical and horizontal resolution is primarily set by the characteristics of the optical system employed and range/data capacity is set by signal-to-noise ratio considerations. Illustrative data are presented as consecutive profiles taken 0.2 s apart for highly trochoidal waves under conditions where the height was recorded to ±0.03 m and horizontal sample separation to ±0.025 m. A comparison is presented with traditional wave staff measurements.

机译：描述了主要设计用于测量海浪形状的激光雷达扫描系统。该设备能够在数百米的距离上测量实时空间轮廓，并且由于激光雷达不可避免地必须在适度的海拔高度（例如，从船的桅顶）运行，因此它本身就是一个非常浅的角度计量设备。这导致波高值的高度不均匀分布。垂直和水平分辨率主要由所用光学系统的特性设置，范围/数据容量由信噪比考虑因素设置。说明性数据显示为在高度记录为±0.03 m，水平样品间距为±0.025 m的条件下，对于高度摆线的波形以相隔0.2 s的连续轮廓的形式呈现。将与传统波谱测量进行比较。

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来源
《Journal of atmospheric and oceanic technology》 |2007年第6期|p.1150-1156|共7页
作者
M. R. Belmont; J. M. K. Horwood; R. W. F. Thurley; J. Baker;
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作者单位

School of Engineering, Computer Science and Math, University of Exeter, EX4 5EB Exeter, United Kingdom;

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正文语种 eng
中图分类大气科学（气象学）;
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Shallow Angle Wave Profiling Lidar

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