Features of the scheme

Because the vehicle platform is unstable, the direction of laser beam deviates from the set direction during lidar measurement, resulting in the deviation of wind speed, wind direction and atmospheric boundary layer height. Whilst, the motion speed of the vehicle itself will be superimposed on the measured radial velocity, resulting in wind speed measurement error. The vertical wind speed requires high resolution, especially affected by the attitude of the vehicle body. Therefore, the influence of the  vehicle’s navigation attitude can not be ignored. The attitude correction of the original data is needed to obtain more accurate data products. Leice has mastered the core algorithm of attitude correction for mobile observation. Through real-time correction of heading angle, pitch angle and roll angle, the true wind data in the moving process can be obtained.