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A new control law based on characteristic exponent assignment for libration point orbit maintenance
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作者 Jian Wei Shi-Jie Xu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2010年第3期495-500,共6页
A new method is developed for stabilizing motion on collinear libration point orbits using the formalism of the circular restricted three body problem. Linearization about the collinear libration point orbits yields a... A new method is developed for stabilizing motion on collinear libration point orbits using the formalism of the circular restricted three body problem. Linearization about the collinear libration point orbits yields an unstable linear parameter-varying system with periodic coefficients. Given the variational equations, an innovative control law based on characteristic exponent assignment is introduced for libration point orbit maintenance. A numerical simulation choosing the Richardson's third order approximation for a halo orbit as a nominal orbit is conducted, and the results demonstrate the effectiveness of this control law. 展开更多
关键词 Circular restricted three body problem -Variational equations Libration point orbit maintenance Characteristic exponent assignment
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