{"title":"Reentry Trajectory Optimization Based on Differential Evolution","authors":"Songtao Chang, Yongji Wang, Lei Liu, Dangjun Zhao","country":null,"institution":"","volume":56,"journal":"International Journal of Computer and Information Engineering","pagesStart":855,"pagesEnd":860,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/3306","abstract":"Reentry trajectory optimization is a multi-constraints\r\noptimal control problem which is hard to solve. To tackle it, we\r\nproposed a new algorithm named CDEN(Constrained Differential\r\nEvolution Newton-Raphson Algorithm) based on Differential Evolution(\r\nDE) and Newton-Raphson.We transform the infinite dimensional\r\noptimal control problem to parameter optimization which is finite\r\ndimensional by discretize control parameter. In order to simplify\r\nthe problem, we figure out the control parameter-s scope by process\r\nconstraints. To handle constraints, we proposed a parameterless constraints\r\nhandle process. Through comprehensive analyze the problem,\r\nwe use a new algorithm integrated by DE and Newton-Raphson to\r\nsolve it. It is validated by a reentry vehicle X-33, simulation results\r\nindicated that the algorithm is effective and robust.","references":null,"publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 56, 2011"}