Abstract: The uncertainty analysis method of Rayleigh lidar for middle and upper atmosphere detection is studied,the current situation of Rayleigh lidar uncertainty analysis and metrological calibration is systematically sorted out,the problems and challenges faced by Rayleigh lidar calibration are analyzed and summarized,and the digital simulation analysis method of Rayleigh lidar uncertainty is proposed.The digital analysis method,model building method and signal flow simulation building process of Rayleigh lidar are discussed.Using digital,Monte Carlo simulation analysis technology,can effectively asses the system measurement uncertainty,reveal the associated components and index factors on the influence of the measurement results,solve the problem of uncertainty analysis of domestic Rayleigh lidar measurement,support detection activities,data quality,predict the prediction of scientific evaluation.

Key words: Lidar, Rayleigh, Detector, Atmosphere, Digital simulation