Drone-mounted UWB snow radar: technical improvements and field results
Drone-mounted UWB snow radar: technical improvements and field results
复制标题
无人机安装的 UWB 雪雷达：技术改进和现场结果
DOI：
10.1080/09205071.2020.1799871
复制
发表时间：
2020
影响因子：
1.3
通讯作者：
S. Jacobsen
中科院分区：
文献类型：
--
作者：
R. R. Jenssen;S. Jacobsen
近年来，无人机机载雷达系统取得了相当大的进展，无人机安装的连续波（CW）雷达在雪特性遥感中的应用具有很大的潜力。无论如何，在天线设计中仍然存在主要挑战，对于天线设计，低重量和小尺寸与高增益和带宽相结合是重要的设计参数。CW雷达的其他限制因素包括距离模糊和天线隔离。为了解决这些问题，我们开发了一种超宽带雪探测器（UWiBaSS），专门为无人机安装的雪特性测量而设计。在本文中，我们提出了下一个迭代的原型雷达系统，包括一个新的天线配置和有用的处理技术，无人机机载雷达。最后，我们提出的结果，从斯瓦尔巴群岛的实地活动，旨在测量雪深分布。该雷达系统能够测量积雪深度，与现场深度探测相比，相关系数为0.97。
Drone borne radar systems have seen considerable advances over recent years, and the application of drone-mounted continuous wave (CW) radars for remote sensing of snow properties has great potential. Regardless, major challenges remain in antenna design for which both low weight and small size combined with high gain and bandwidth are important design parameters. Additional limiting factors for CW radars include range ambiguities and antenna isolation. To solve these problems, we have developed an ultra-wideband snow sounder (UWiBaSS), specifically designed for drone-mounted measurements of snow properties. In this paper, we present the next iteration of this prototype radar system, including a novel antenna configuration and useful processing techniques for drone borne radar. Finally, we present results from a field campaign on Svalbard aimed to measure snow depth distribution. This radar system is capable of measuring snow depth with a correlation coefficient of 0.97 compared to in situ depth probing.