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多光束测风激光雷达是在假设探测的时间内气溶胶团的结构不发生变化的条件下,利用接收到的多光束气溶胶后向散射信号的强度,通过不同计算方法得到水平风速。这种系统具有设备简单、对硬件要求不高等优点。本文分析并比较了基于多光束雷达信号之间的相关性的多光束测风激光雷达和基于两个多波束激光雷达信号的傅里叶变换的比值的多光束测风激光雷达两种技术,后者具有可快速计算水平风速的优点。
The multi-beam wind-lidar utilizes the strength of the backscattered signal of the received multi-beam aerosol and the horizontal wind speed obtained by different calculation methods under the assumption that the structure of the aerosol does not change during the time of the detection. This system has the advantages of simple equipment, low hardware requirements. This paper analyzes and compares two techniques of multi-beam wind lidar based on the correlation between multi-beam radar signals and multi-beam wind lidar based on the ratio of Fourier transform of two multi-beam lidar signals. After that, Has the advantage of being able to quickly calculate the horizontal wind speed.