Dynamic data fixing for IR target radiation characteristics

The main methods to measure the target IR features are the following two ways: test and then measurement; or theoretical and simulation calculation. The former is direct measurement so the results are more accurate but the test is costly and complicated, so that it is limited in the application. Theoretical and simulation calculation are widely used in the target IR radiation calibration. Here we give the basic configuration of the calibration platform for measuring the IR radiation of the large area low temperature blackbody source, and discuss the calibration flowchart and key technologies for atmospheric transmission correction. The dynamic data are analyzed in real time to determine the IR radiation features in the data fusion subsystem, and the experimental results show that the calibration method is feasible and practical.