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首页> 外文会议>Oceans-St. John s Conference >Initial surface current measurements on the West Florida shelf using WERA HF ocean radar with multiple input multiple output (MIMO) synthetic aperture
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Initial surface current measurements on the West Florida shelf using WERA HF ocean radar with multiple input multiple output (MIMO) synthetic aperture

机译：西佛罗里达州的初始表面电流测量使用Wera HF海洋雷达，具有多输入多输出（MIMO）合成孔径

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摘要

High-frequency (HF) radar systems located at the coast are well-known as a measurement tool for synoptic online mapping of ocean surface current fields. These radars use surface electromagnetic wave propagation coupled to the salty ocean surface and are capable of monitoring thousands of square kilometers of the ocean surface. For oceanographic applications, low transmit power HF radar beamforming systems have been developed for operation in the 3-30 MHz frequency band. These systems require the use of a linear array of receive antenna elements whose inter-element spacing is dependent upon the operational frequency chosen. This paper presents a new approach of applying the Multiple Input Multiple Output (MIMO) technique with a synthesized antenna aperture to a compact HF ocean radar. The initial results show that the MIMO HF radar configuration with collocated receive antennas can be used for both oceanographic measurements and ship tracking applications. Initial MIMO results also reveal that positive results can be achieved from a reduced length receive array without reducing overall system performance. The comparison between standard and MIMO configurations has been focused on the estimation of surface current velocities and comparison with in-situ acoustic Doppler current profiler (ADCP) measurements.
机译：位于海岸的高频（HF）雷达系统是众所周知的，用于海面电流场的概要在线映射的测量工具。这些雷达使用耦合到咸海表面的表面电磁波传播，能够监测数千平方公里的海面。对于海洋应用，已经开发出低传输功率HF雷达波束形成系统在3-30 MHz频带中进行操作。这些系统需要使用其元素间距的接收天线元件的线性阵列取决于所选择的操作频率。本文介绍了应用多个输入多输出（MIMO）技术的新方法，将合成的天线孔径施加到紧凑的HF海洋雷达。初始结果表明，带有并置接收天线的MIMO HF雷达配置可用于海洋测量和船舶跟踪应用。初始MIMO结果还表明，可以通过减小的长度接收阵列实现阳性结果而不降低整体系统性能。标准和MIMO配置之间的比较专注于估计表面电流速度和与原位声学多普勒电流分析器（ADCP）测量的比较。

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