From The Missiles Free Flight Data Extracted Aerodynamic Coefficients

This paper mainly studies how to accurately fit the air dynamics parameter by the ballistic data of projectiles' free flight. The author summarizes the test technologies of the projectile attack angular through a great deal of collected material from the practical work, so it is a valuable reference. On the basis of the accurate 6D ballistic model, the paper studies the fitting of the air dynamics parameter taking use of the modified Chapmann-kirk method, and discusses the effect of the test error of the attack angular on the fitting air dynamics parameter using the method of the random data simulation method.