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Research on arrival time interval control of multiple independent reentry vehicle

Using multiple independent reentry vehicle (MIRV), a single launched missile can provide greater target damage for a given missile payload and reduce the effectiveness of an anti-ballistic missile system that relies on intercepting individual warheads. When MIRV strike one target, arrival time interval must be controlled to make sure that MIRV can't destroy each other. This problem is equal to determining initialization velocity of reentry vehicle when it is released. This paper presents solution of the problem using original Gauss method. The initialization velocity is obtained, however it must be amended in order to reduce landing error. So motion model of MIRV in launch inertial reference frame is derived and amendment method of the obtained initialization velocity is provided. Finally numerical simulations are performed. The simulation results show that classical Gauss method can determine the initialization velocity fast and arrival time interval can be controlled with small landing error.