Boost-phase intercept of a threat intercontinental ballistic missile (ICBM) is the first layer of a multi-layer defense. This thesis investigates the requirements and limitations of the U.S. space-based ICBM defense against North Korea, Iran, and China by introducing an ICBM trajectory prediction, selecting an orbit for exo-atmospheric kill vehicles (EKV), and developing a hybrid guidance algorithm. The prediction of the ICBM trajectory takes the rotation of the earth and the atmospheric drag into account along with gravitational forces and thrust. The threat ICBM locations, specifications, and capabilities of the EKV and EKV carrier, and the capabilities of the space launch vehicle are analyzed to determine an appropriate orbit for the space- based intercept. The pursuit guidance, proportional navigation guidance, and bang-bang guidance rules and their performances are investigated and simulated for three example ICBM threats in a three-dimensional environment. The simulation results are compared and analyzed for minimum miss distance, intercept time, and total command effort. The guidance rules are combined to meet the mission requirements, resulting in a hybrid guidance algorithm, which uses different guidance rules for different stages of a boost-phase intercept scenario.
Orbit Selection and EKV Guidance for Space-Based ICBM Intercept
2005
136 pages
Report
Keine Angabe
Englisch
Antimissile Defense Systems , Missile Trajectories & Reentry Dynamics , Surface Launched Missiles , Navigation Systems , Spacecraft Trajectories & Flight Mechanics , Boost phase , Mathematical prediction , Intercept trajectories , Space based , Ballistic missile intercept systems , Intercontinental ballistic missiles , Algorithms , Computerized simulation , North korea , Proportional navigation , China , Kill vehicles , Interceptor spacecraft , Miss distance , Iran , Exosphere , Limitations , Theses , Threats , Military requirements , Guided missile trajectories , Orbit selection , Hybrid guidance algorithms , Space-based missile defense , Boost-phase missile defense , Trajectory predictions , Space launch vehicles , Intercept geometry , Pursuit guidance , Beam riders , Bang bang guidance , Eko(Exo-atmospheric kill vehicles) , Simulink computer program
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