| Year of publication |
2003 |
| Category |
Int. Conference |
| Subject |
|
| Title |
3-D Evasive Maneuver Policy for Anti-Ship Missiles Against Close-In Weapon Systems |
| Author |
유창경, Ick-Ho Whang, Min-Jea Tahk |
| Journal title |
Proceedings of the 2003 AIAA Guidance, Navigation, and Control Conference and Exhibit, AIAA 2003-5653 |
| Publication date |
Aug. 11-14, 2003 |
| Volume & Other data |
Austin, Texas |
| Abstract |
In this paper, an evasive maneuver policy for ASM(Anti-Ship Missile) to increase survivability against ship-borne CIWS(Close-In Weapon System) in three-dimensional space is studied in optimal control perspective. Time varying weighted sum of the inverse of aiming errors of the CIWS forms a performance index to be minimized, in which the aiming error of the CIWS is caused by the ASM's evasive maneuver during the predicted encounter time between each shell of CIWS and the ASM. Due to the path dependency of the performance index on maneuver acceleration profile for the predicted encounter time, the proposed optimal control problem not only is not the typical two-point boundary value problem, but also may not satisfy the principle of optimality. Direct parameter optimization technique using CFSQP is adopted to get optimal evasive maneuver command for various time constants of the ASM's autopilot approximated as the first order lag system. The overall shape of resultant optimal evasive trajectory is a kind of barrel roll whose size and frequency are heavily dependent on the system's time constant. |
| Keywords |
Evasive maneuver, Trajectory optimization, Time varying barrel roll, Optimal control |
| Issn Number |
|
| Link |
 http://arc.aiaa.org/doi/abs/10.2514/6.2003-5653 [350] |
