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    Elastic backscattering and backreflection lidar device for the characterization of atmospheric particles
    3.
    发明公开
    Elastic backscattering and backreflection lidar device for the characterization of atmospheric particles 有权
    弹性散射和Rückstrahlungslidarverfahren大气颗粒和系统的特征为这样的方法

    公开(公告)号：EP2144088A2

    公开(公告)日：2010-01-13

    申请号：EP09164807.1

    申请日：2009-07-07

    申请人： Consiglio Nazionale delle Ricerche - INFM Istituto Nazionale per la Fisica della Materia ,  CNISM -CONSORZIO NAZIONALE INTERUNIVERSITARIO PER LE SCIENZE FISICHE DELLA MATERIA

    发明人： Spinelli, Nicola ,  Wang, Xuan ,  Frontoso, Maria Grazia

    IPC分类号： G01S17/95 ,  G01N21/53

    CPC分类号： G01S17/95 ,  G01N21/538 ,  G01S7/4972 ,  Y02A90/19

    摘要： A method is described for the characterization of atmospheric particles by means of a lidar device (10). The method provides to send a laser pulse in the atmosphere, a part of which (Dir) is directly backscattered by the particles (Sz) in the atmosphere. A reflecting optical device is provided, that is positioned at a predetermined distance d from the lidar device, whereby a part (Cp) of the laser pulse that directly reaches the reflecting device is backreflected and is later backscattered by the particles in the atmosphere thus generating a counterpropagating backscattering signal directed towards the reflecting device, which signal reaches the reflecting device and is backreflected towards the lidar device. The lidar device detects the direct backscattering and counterpropagating signals. The optical characteristics of the particles are determined on the basis of the direct backscattering signal and the counterpropagating backscattering signal.

    摘要翻译： 一种方法是通过激光雷达装置（10）来描述大气颗粒的表征。 该方法提供了在大气中发送激光脉冲，其中的一部分（你）是直接由在大气中的颗粒（SZ）反向散射。 本发明提供一种反射型光学装置，并在从所述激光雷达设备的预定距离d，由此部分（CP）的激光脉冲的并直接到达反射装置被背反射并随后通过在大气中的颗粒从而产生的反向散射定位 朝向反射装置，该信号到达反射装置，并朝着激光雷达设备向反射一个逆向传播的反向散射信号。 激光雷达设备检测直接反向散射和反向传输信号。 颗粒的光学特性确定的开采的直接背散射信号和所述反向散射相向信号的基础上。