Research on Improving Kinematics Equation of Traditional Orbit Parameters Based on Orbital Dynamics

Complex space missions have higher and requirements for orbit representation, prediction control. Traditional parameters many shortcomings in representation extrapolation. From the point of view improving traditional orbital parameters, this paper analyzes several groups including unit quaternions. Based on a group quaternion elements composed vector such as radial distance, velocity angular momentum, dynamics kinematics equations are derived, transformation relationship between is given. The simulation example proves effectiveness kinematic equation method parameters.