Identifying method of rocket resistance coefficients based on sensitivity function

In the flight dynamics model of cannonball and rocket, the resistance coefficient is one of the important model parameters and identification of the resistance coefficient is an important task. A mathematical method of identification the resistance coefficient is given through sensitivity function of ballistic parameters coefficient in this paper. In the same time, combining with ballistic test data the resistance coefficient is identified in the flight of cannonball and rocket. According to the identification results, predicted mathematical model can be established with more precise trajectory parameters to increase the precision of calculating and controlling.