Technique On The Mid-course Guidance Of Remote Defense Maneuvering Interception For Boost-gliding Vehicle

The safety of space will been threatened by the hypersonic vehicle according to the performance of the penetration.Based on hypersonic boost-gliding vehicle,the technology of remote defense maneuvering interception have been analyzed.The main achievements researched in this dissertation are summarized as follows:According to the character of the boost-gliding vehicle,the mathematical model of three freedom degree have been established and the ability of the transversely and vertically maneuvering have been analyzed detailedly.When the vehicle maneuver transversely,the influence of the turning radius and the lateral separation have been studied concretely.When the vehicle maneuvers vertically,the similarities and differences of the skipping glide and the equilibrium glide also have been studied.On the basis of the analytical results,the strategy approaching the interception target constantly is recommended.Considering the spherical triangle,the whole thinking about computing the elements of the interception is described.Launching phase contains the rocket-boosting phase and the reentry phase.The dissertation has chiefly studied the design of the rocket-boosting phase due to the freedom of the space-reentry phase.The dissertation chooses the classical model of the controlling angle and designs the boost trajectory by the control objective of time and range.According to the equilibrium gliding hypothesis,the dissertation has deduced the relation between the state and time,then it used the relation solve azimuth of the interceptor.Considering the analytical result about the characters of the vehicle,the strategy of real-time guidance and remote interception has been presented.According to the model of proportional guidance,the formula computing the controlling angle has been deduced.The different way of dynamical and unpowered interception has been compared and simulation tests feasibility.Due to the reality of flight,the time interval of the observed information has been considered to further test the reliability of the interception strategy.