The Impact of Elevation Sidelobe Contamination on Radar Data Quality for Operational Interpretation
The Impact of Elevation Sidelobe Contamination on Radar Data Quality for Operational Interpretation
复制标题
仰角旁瓣污染对业务解释雷达数据质量的影响
DOI：
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发表时间：
2020
影响因子：
3
通讯作者：
S. Torres
中科院分区：
文献类型：
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作者：
Feng Nai;Jami Boettcher;C. Curtis;D. Schvartzman;S. Torres
为了满足国家气象局（NWS）不断变化的观测需求，未来的天气雷达系统将必须满足苛刻的要求。设计这样的系统将可能涉及系统成本和操作性能之间的权衡。未来天气雷达的一个潜在成本驱动因素可能会对预报员的数据质量产生重大影响，这是所需的角分辨率和旁瓣性能，这主要取决于天线辐射方向图。典型的天线辐射方向图可以通过主瓣的宽度和它们的旁瓣电平来表征，其传统上是在方位角和仰角维度上测量的。在这项工作中，我们研究的影响，增加旁瓣电平对NWS预报员的数据解释在警报操作。由此产生的影响模型可供决策者使用，以更好地了解任何雷达系统设计中固有的成本效益权衡。
To fulfill the evolving observational needs of the National Weather Service (NWS), future weather radar systems will have to meet demanding requirements. Designing such systems will likely involve trade-offs between system cost and operational performance. A potential cost driver for future weather radars that could cause significant data-quality impacts on forecasters is the required angular resolution and sidelobe performance, which are mainly dictated by the antenna radiation pattern. Typical antenna radiation patterns can be characterized by the width of the main lobe and their sidelobe levels, which are traditionally measured across the azimuthal and elevation dimensions. In this work, we study the impact of increasing sidelobe levels on NWS forecasters’ data interpretation during warning operations. The resulting impact model can be used by decision-makers to better understand the cost–benefit trade-offs inherent in any radar system design.