Abstract
A kind of terminal guidance law based on Gauss pseudo spectral method (GPM) is provided for the target slowing moving property. Owing to high accuracy and fast convergence, GPM was adopted to solve the optimal reentry trajectory satisfied some performance index and constraints, and the waypoints were set as corrected points. Predictor-correction guidance method was adopted to revise the location error at waypoints. Simulations prove that the guidance method has higher accuracy and can be used to guidance online.
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