| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To guide an aerial rocket to an objective point. <P>SOLUTION: A forecasting calculation unit 220 inputs a current position vector, a current velocity vector, and a current thrust acceleration vector of the rocket from navigation equipment. The 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 the current position vector, the current velocity vector, the current thrust acceleration vector, a current time, the current-stage burnout time, and a current-stage thrust acceleration profile and further calculates a predicted value of an orbit at a final-stage burnout time 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, the final-stage burnout time, and a final-stage thrust acceleration profile. A guidance calculation unit 230 compares the predicted value of the orbit at the final-stage burnout time with a target value of the orbit and further calculates a new thrust-direction angle on the basis of a difference between the predicted value of the orbit and the target value of the orbit to output the angle to a rocket control apparatus. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
