TY - GEN
T1 - Optimal trajectory tracking for missiles with doppler beam sharpening radars
AU - Farooq, Asif
AU - Limebeer, David J.N.
N1 - Publisher Copyright:
© 2007 EUCA.
PY - 2007
Y1 - 2007
N2 - This paper investigates optimal trajectory tracking for missiles fitted with Doppler Beam Sharpening seekers, which are used to generate a radar image of the terrain. The guidance problem for this type of sensor is complex as constraints must be imposed on the flight path of the missile to ensure the seeker can obtain adequate crossrange resolution for target recognition and aimpoint selection. Terminal position and impact angle constraints are also imposed in the guidance problem. An open-loop skid-to-turn trajectory optimization problem is solved numerically and then used as an optimal trajectory to follow using closed-loop in-flight controls. This closed-loop guidance is based on linear quadratic regulation with a switchover to an impact angle guidance law. In this paper we also investigate the effectiveness of a preview term based on prediction of the future trajectory from the current state. Results with and without the preview term are presented for a test example.
AB - This paper investigates optimal trajectory tracking for missiles fitted with Doppler Beam Sharpening seekers, which are used to generate a radar image of the terrain. The guidance problem for this type of sensor is complex as constraints must be imposed on the flight path of the missile to ensure the seeker can obtain adequate crossrange resolution for target recognition and aimpoint selection. Terminal position and impact angle constraints are also imposed in the guidance problem. An open-loop skid-to-turn trajectory optimization problem is solved numerically and then used as an optimal trajectory to follow using closed-loop in-flight controls. This closed-loop guidance is based on linear quadratic regulation with a switchover to an impact angle guidance law. In this paper we also investigate the effectiveness of a preview term based on prediction of the future trajectory from the current state. Results with and without the preview term are presented for a test example.
UR - http://www.scopus.com/inward/record.url?scp=84927728848&partnerID=8YFLogxK
U2 - 10.23919/ecc.2007.7068539
DO - 10.23919/ecc.2007.7068539
M3 - Conference contribution
AN - SCOPUS:84927728848
T3 - 2007 European Control Conference, ECC 2007
SP - 3985
EP - 3992
BT - 2007 European Control Conference, ECC 2007
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2007 9th European Control Conference, ECC 2007
Y2 - 2 July 2007 through 5 July 2007
ER -