Attitude measurement method research for missile launch

In order to solve the problem of attitude measurement in missile launch, tilted and plane collimation attitude measurement methods were presented by using high speed videos to calculate pitch and yaw angle for missile middle axes. The missile flight attitude measurement accuracy and applicability of these methods were analyzed by simulating representative near distance missile attitude measurement in flying-off process. The simulating result proves that it may acquire the measuring accuracy of less than 0.2° by these methods. Plane collimation method is more accuracy. Data processing method and mechanism configuration are relatively simple, and it is more advantage in proper application environment. Tilted collimation method is more universality and suitable for application. Analyzing result and method not only provide a new way to choose attitude measurement method, but also give a reference for measuring poses of other moving objects.