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MULTISTAGE ROCKET GUIDANCE EQUIPMENT, MULTISTAGE ROCKET GUIDANCE PROGRAM, MULTISTAGE ROCKET GUIDANCE METHOD, AND MULTISTAGE ROCKET GUIDANCE SYSTEM
MULTISTAGE ROCKET GUIDANCE EQUIPMENT, MULTISTAGE ROCKET GUIDANCE PROGRAM, MULTISTAGE ROCKET GUIDANCE METHOD, AND MULTISTAGE ROCKET GUIDANCE SYSTEM
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机译：多级火箭制导设备，多级火箭制导程序，多级火箭制导方法和多级火箭制导系统
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摘要
PROBLEM TO BE SOLVED: To guide a solid rocket, which is launched by an air launching system, to a large elliptical orbit as much as possible.;SOLUTION: A forecasting calculation unit 220 calculates a predicted position vector and a predicted velocity vector at a current-stage burnout time by integral calculation on the basis of a current position vector, a current velocity vector, a current thrust acceleration vector, a current time, the current-stage burnout time, and a current-stage thrust acceleration profile. The forecasting calculation unit 220 also calculates an orbit length radius of a predicted elliptical orbit and an altitude of perigee by integral calculation on the basis of the predicted position vector and the predicted velocity vector at the current-stage burnout time, the current-stage burnout time, a final-stage burnout time, and a final-stage thrust acceleration profile. A guidance calculation unit 230 calculates a new thrust direction angle on the basis of the orbit length radius of the predicted elliptical orbit and a difference between the altitude of perigee (or altitude of apogee) of the predicted elliptical orbit and a target altitude of perigee (or altitude of apogee) and then outputs the angle to a rocket control apparatus 120.;COPYRIGHT: (C)2013,JPO&INPIT
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