用于水下激光雷达的海洋质量模拟器

L. Mullen, P. Herczfeld, V. Contarino, D. Allocca, M. Squicciarini, R. Billmers
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引用次数: 4

摘要

由于微波既被水反射又被水吸收,因此不能利用雷达技术探测水下物体。在这种情况下,使用光探测和测距方法(激光雷达)。然而,与雷达不同的是,传统的激光雷达系统不允许相干探测技术,这会导致系统灵敏度的损失。因此,提出将毫米波与光学技术相结合,开发新的相干检测方案。激光雷达系统中传输的光信号在通过海水传播时受到衰减、分布后向散射和色散的影响。由于该项目的目标是测试微波-激光雷达混合信号处理技术,因此需要一种简单、廉价的方法来模拟水介质。对塑料光纤的后向散射信号进行了检测,证明该光纤可以作为不同类型海水的精确模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ocean mass simulator for underwater LIDAR applications
Since microwaves are both reflected and absorbed by water, radar techniques cannot be utilized in the detection of underwater objects. For this situation, light detecting and ranging methods (LIDAR) are used. However, unlike radar, conventional LIDAR systems do not allow for coherent detection techniques which results in a loss in system sensitivity. Therefore, it is proposed that by combining millimeter wave and optical techniques, new coherent detection schemes can be developed. The transmitted optical signal in a LIDAR system is subject to attenuation, distributed backscattering, and dispersion as it propagates through the sea water. Since the goal of the project is to test hybrid microwave-LIDAR signal processing techniques, a simple, inexpensive method is needed to simulate the water medium. The backscattered signal from plastic optical fiber is examined to qualify the fiber as an accurate model of different types of sea water.<>
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