Error analysis of the moving mirror tilting in Michelson wind imaging interferometer

In this paper, we analyzed the error induced by moving mirror tilting in Michelson wind imaging interferometer (MWII) and derived an analytical equation of the error, which is related to the instrument measured temperature and velocities, then we numerically simulated and obtained the curved surfaces of these quantities. Finally, the tolerance of the moving mirror tilting error for MWII was discussed in the range of allowance precision. This work has great significance on the theory research, capability improvement, engineering of wind image interferometer and would be useful for the application of MWII on the passive measurement of the wind field of the upper atmosphere.