Modeling and Simulation of Fixed-canard Trajectory Correction Projectile

Fixed canard and body of trajectory correction projectile have different roll angular velocity,so the rigid 6D model can't effectively describe the state of motion in the flight process.Taking projectile and correction system as two rigid bodies separately,6D model was built.The movement relation between the two was studied,and the 7Dballistic model was built.To take a certain spin-stabilized projectile for an example,the variation curves of attack angle and sideslip angle were obtained based on Simulink.The 7Dballistic model can accurately describe the trajectory features through simulation of certain spin-stabilized projectile.