Analysis On Influencing Factor For Accuracy Of Atmosphere Transmissibility Test System

Atmosphere transmissibility is an important influencing factor in infrared radiation transfer field. Atmosphere transmissibility can be affected too much by meteorological parameter, and atmosphere pressure, humidity, gas density will change obviously in a short time also. So the atmosphere transmissibility will make a basilic change. At the same time, unstable meteorological condition will take more difficulty for measuring the atmosphere transmissibility.This thesis mainly described the atmosphere transmissibility test system and the measure principle for atmospheric sounding lidar, and also made an analog simulation calculation by MODTRAN mode for atmosphere transmissibility. Otherwise, this thesis analyzed each influencing factor which can affect the accuracy for atmosphere transmissibility test system.1. Measurement error of lidar and error for lidar data handling;2. Measurement error of gasoloid analysis equipment and error of data handling;3. Measurement error of meteorological parameter testing instrument;4. Calculation accuracy of MODTRAN mode.Through these analyses for the rationale and the discussion for the analog simulation calculation result, the conclusion indicates that the final result for the atmosphere transmissibility is 15% by synthesizing each influencing factor about the atmosphere transmissibility testing system.