| 摘要 |
PROBLEM TO BE SOLVED: To provide a missile guidance system capable of achieving a fitting error of approximately several tens of cm even when the visual line direction changes with time in a staircase pattern on the basis of the field angle resolution characteristic of an image sensor. SOLUTION: This missile guidance system comprises a visual direction detecting device 1 for an interception missile, a speed/time output device 6 for outputting a relative speed of BM (Ballistic Missile) and the interception missile, and a remaining time to the hit, a fitting error selecting device 2 calculating a visual direction calculated value and a fitting error calculated value on the basis of the relative speed and the remaining time on the basis of an observation model, comparing the visual direction calculated value and a visual direction detected value, and selecting a fitting error calculated value corresponding to the visual direction calculated value in a case when the deviation is within a specific value, a fitting error representative point calculating device 3, a side thruster injection quantity calculating device 4 for calculating the side thruster injection quantity for making the fitting error representative point zero, and a side thruster 5 performing the injection in accordance with the side thruster injection quantity. COPYRIGHT: (C)2004,JPO&NCIPI
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