High‐resolution atmospheric profiling using combined spaced antenna and range imaging techniques
High‐resolution atmospheric profiling using combined spaced antenna and range imaging techniques
复制标题
使用组合间隔天线和距离成像技术进行高分辨率大气剖面分析
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
W. Brown
中科院分区：
文献类型：
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作者：
T. Yu;W. Brown
提出了一种同时使用间隔天线（SA）和距离成像（RIM）的高分辨率风廓线的新方法。RIM是近年来发展起来的一种通过发射多个频率来提高脉冲雷达距离分辨率的技术。在这项工作中，SA技术被用来分析RIM合成信号，并获得高分辨率的三维风场廓线。这种高分辨率技术被称为RIM‐SA。仿真结果证明了RIM‐SA测量嵌入在雷达体积内的风切变的可行性。利用美国国家大气研究中心（NCAR）的多天线廓线雷达（MAPR），演示了RIM-SA在大气边界层和低层自由对流层中的应用。使用RIM-SA的高分辨率剖面与使用单频短脉冲的无线电探空仪和MAPR测量的剖面一致。
A novel approach to high‐resolution wind profiling is presented using spaced antenna (SA) and range imaging (RIM) simultaneously. RIM was developed recently to improve the range resolution of pulsed radar by transmitting multiple frequencies. In this work, SA techniques are used to analyze RIM‐synthesized signals and obtain high‐resolution profiles of three‐dimensional wind field. This high‐resolution technique is termed RIM‐SA. Simulation results demonstrate the feasibility of RIM‐SA to measure wind shears embedded within the radar volume. The applications of RIM‐SA in the atmospheric boundary layer and lower free troposphere are demonstrated using the multiple antenna profiler radar (MAPR) of National Center for Atmospheric Research (NCAR). High‐resolution profiles using RIM‐SA are shown to be consistent with profiles measured by a radiosonde and MAPR using a single frequency and short pulse.