首页> 外国专利> METHOD FOR DETECTING WIND SPEEDS USING A DOPPLER-LIDAR SYSTEM, ESPECIALLY ON AEROPLANES, AND DOPPLER-LIDAR SYSTEM

METHOD FOR DETECTING WIND SPEEDS USING A DOPPLER-LIDAR SYSTEM, ESPECIALLY ON AEROPLANES, AND DOPPLER-LIDAR SYSTEM

机译:用多普勒-激光系统特别是在飞机上探测风速的方法和多普勒-激光系统

摘要

In the case of a method of detecting wind velocities by means of a Doppler-lidar system (10), a laser beam of a defined frequency generated by means of a laser (11) is emitted by a transmitting device (12) toward a space area and the light backscattered from the space area is received by means of a receiving telescope (13). For determining a Doppler shift, an interferogram is generated by means of an interferometer (16), the intensity distribution of the interferogram being directly measured by means of a photodetector (17). The measured intensity distribution is compared with one or more reference patterns which had previously been determined for defined parameters and are filed in a memory device (18a). From the comparison, the Doppler shift is determined as a measurement for the wind velocity. The Doppler-lidar system (10) comprises an analyzing unit (18a, 18b) for implementing the method, having a comparison unit (18b) for the comparison of reference patterns with the measured interferogram.
机译:在通过多普勒激光系统(10)检测风速的方法的情况下,由激光(11)产生的确定频率的激光束由发射装置(12)朝着空间发射。区域和从空间区域反向散射的光由接收望远镜(13)接收。为了确定多普勒频移,通过干涉仪(16)产生干涉图,通过光检测器(17)直接测量干涉图的强度分布。将测得的强度分布与一个或多个参考图案进行比较,该参考图案先前已经为确定的参数确定并且被存储在存储设备(18a)中。通过比较,将多普勒频移确定为风速的度量。多普勒激光雷达系统(10)包括用于实施该方法的分析单元(18a,18b),该分析单元具有用于将参考图案与所测量的干涉图进行比较的比较单元(18b)。

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