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介绍了基于米散射多普勒测风激光雷达的基本原理。测风激光雷达系统一般由发射系统、接收系统、信号发射接收光学系统、控制系统组成,其中接收系统在整个系统中最重要,起到信号鉴频的作用。基于测量误差最小和实际加工工艺的考虑,设计了标准具的参数和米散射测风激光雷达接收机的结构,并且把该接收机用于米散射测风激光雷达系统中并进行了标准具透过率的测量,用Pseudo-Voigt函数拟合出标准具的各个参数,与理论设计相差在5%以内。同时进行了风廓线的初步测量,与风廓线雷达Airda16000进行了比对,两者符合很好。
The basic principle of Doppler wind lidar based on scattering is introduced. The wind laser radar system is generally composed of a transmitting system, a receiving system, a signal transmitting and receiving optical system, and a control system, wherein the receiving system is the most important in the whole system and functions as a signal frequency discriminator. Based on the minimum measurement error and the actual processing technology, the etalon parameters and the structure of the rice scattering lidar receiver are designed. The receiver is used in the rice scatter wind lidar system, The rate of measurement, using Pseudo-Voigt function to fit the etalon of the various parameters, and theoretical design difference of less than 5%. At the same time, a preliminary measurement of the wind profile was made and compared with the wind profiler Airda16000, which fits well.