Abstract
The reentering capsule with super-orbital velocity in manned space flight missions such as return from the lunar orbit, or from asteroids requires lifting entry in order to restrict deceleration and heat transfer rate within a given range. At the first entry, appropriate control of the L/D, namely bank-angle, based on the states of the vehicle, is crucial not only for the landing point guidance but also for the flight environment relaxation. In the process of research activities on the synthetic analysis of the skip entry of the lifting-flight capsule with super-orbital velocity, the present paper analysis introduces the state-estimation by extended Kalman filtering (EKF) method with noise superimposed on the true value. Especially the effect of the attitude motion during the bank-control on the control errors is quantitatively estimated. The state estimation of the reentry flight has been presented thorough experiment/flight data and numerical simulations.
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