Development of guidance laws for a variable-speed missile

Journal Article · Wed May 01 00:00:00 EDT 1991 · Dynamics and Control; (United States)

DOI:https://doi.org/10.1007/BF02169549· OSTI ID:7037367

Gazit, R; Gutman, S ^[1]

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1. Technion - Israel Institute of Technology, Haifa (Israel)

The most used guidance law for short-range homing missiles is proportional navigation (PN). In PN, the acceleration command is proportional to the line-of-sight (LOS) angular velocity. Indeed, if a missile and a target move on a collision course with constant speeds, the LOS rate is zero. The speed of a highly maneuverable modern missile varies considerably during flight. The performance of PN is far from being satisfactory in that case. In this article the collision course for a variable-speed missile is analyzed and a guidance law that steers the heading of the missile to the collision course is defined. Guidance laws based on optimal control and differential game formulations are developed, and note that both optimal laws coincide with the Guidance to Collision law at impact. The performance improvement of the missile using the new guidance law as compared to PN is demonstrated. 19 refs.

• OSTI ID: 7037367
• Journal Information: Dynamics and Control; (United States), Vol. 1:2; ISSN 0925-4668
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
MISSILES
ELECTRONIC GUIDANCE
ANGULAR VELOCITY
COLLISIONS
COMPARATIVE EVALUATIONS
GAME THEORY
OPTIMAL CONTROL
PERFORMANCE
TARGETS
CONTROL
CONTROL SYSTEMS
EVALUATION
MATHEMATICS
STATISTICS
VELOCITY
450000* - Military Technology
Weaponry
& National Defense