Abstract
This paper proposes integrated guidance and control design to intercept
a non-maneuvering target at a pre-specified time of interception. The
problem is addressed considering nonlinear engagement kinematics and the
interceptor is steered using the combined effects of canard as well as
tail configurations (dual control interceptors). Different formulations
of time-to-go, without the restrictive assumption of interceptor’s small
heading angle, have been used in deriving the guidance commands,
allowing the proposed strategies to remain effective over a wide range
of impact time values. A weighted effort allocation scheme, in canard
and tail deflections, has been proposed to generate the required lateral
acceleration. The overall design uses sliding mode control owing to its
simplicity of design. Finally, simulations are presented for various
scenarios, including impaired actuator, vindicating the efficacy of the
proposed technique.