Beam scanning of lidar and the simulation of the improved VAD inversion methods

In order to remedy the shortage of the lidar velocity azimuth display(VAD) method and improve the precision of the inversion wind velocity,a new technique was put forward with iterative pretreatment to eliminate low and oddity wind velocity and with the summation average statistical method to obtain three-dimension wind field.The wind field model was built,and then the simulation and error analysis were carried out.The results show that the absolute error of inversion wind field is within 0.5m/s,only one half of that of traditional velocity azimuth display method.