EFFECT ON BALLISTIC CHARACTERISTICS OF FINNED ROCKET DUE TO SURFACE WIND AND ITS CORRECTION

摘要

In this paper, the effect on ballistic characteristics of a finnedrocket due to surface wind is studied in the complex plane. The angle ofattack equation is established including the cross motion and roll equation.The ballistic characteristics of the parameters such as θ , ψ , δ_(r1),δ_(r2), ϕ_α, ϕ_2,γ, X and Z are simulated and analyzed. The simulation resultsshow that the surface wind would arouse sizeable scatter at the initialtrajectory because of the low flight velocity and surface wind field. Acorrection method is advanced to decrease the dispersion of the finnedrocket by using the energy and aerodynamic control method, and thecorrection formulas are given to increase the firing accuracy.