Unsaturated Optimal Guidance Law for Impact Angle and Acceleration Constraints

Most research on impact angle control has not addressed acceleration constraints, as it assumes that maneuverability is sufficient. However, when guidance commands are saturated due to aerodynamic or structural loads, the miss distance and impact angle errors can be significantly large. This paper p...

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Bibliographic Details
Published in:IEEE access 2023, Vol.11, p.112535-112546
Main Authors: Kim, Junseong, Cho, Sungjin
Format: Article
Language:English
Subjects:
acceleration constraint
Accelerometers
closed-form solution
Closed-form solutions
Constraint modelling
Geometry
Guidance (motion)
Impact angle
impact angle control
Mathematical models
Miss distance
Missiles
Numerical simulation
Optimal control
Optimal guidance law
Optimization
Weighting functions
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Summary:Most research on impact angle control has not addressed acceleration constraints, as it assumes that maneuverability is sufficient. However, when guidance commands are saturated due to aerodynamic or structural loads, the miss distance and impact angle errors can be significantly large. This paper presents an unsaturated optimal guidance law that satisfies acceleration constraints in a period of full flight. The proposed guidance law is established by designing a weighting function based on the closed-form solution of a time-to-go weighted optimal impact angle guidance law. This strategy theoretically guarantees optimality and convergence under acceleration constraints. Numerical simulations are conducted to validate the proposed guidance law.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2023.3324244