Impact-angle-constrained guidance against moving targets

2015 ◽  
Author(s):  
D. Zhang ◽  
R.G. Wang
Keyword(s):  
Impact Angle ◽  
Moving Targets

Generalized Time-Optimal Impact-Angle-Constrained Interception of Moving Targets

2017 ◽  
Vol 40 (8) ◽  
pp. 2115-2120 ◽  
Author(s):  
Akhil Gopalan ◽  
Ashwini Ratnoo ◽  
Debasish Ghose
Keyword(s):  
Impact Angle ◽  
Moving Targets ◽  
Time Optimal ◽  
Generalized Time

scholarly journals Impact Angle Control Guidance to Intercept Moving Targets by Virtual Target Technique

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Libing Hou ◽  
Jihong Zhu ◽  
Minchi Kuang ◽  
Heng Shi
Keyword(s):  
Numerical Simulations ◽  
Pid Controller ◽  
Impact Angle ◽  
Lateral Acceleration ◽  
Stable Theory ◽  
Moving Targets ◽  
Guidance Law ◽  
Flight Path Angle ◽  
Virtual Target ◽  
The Impact

To solve the problem regarding the impact angle of the missile, this paper proposes a novel guidance law, which can control the missile to hit the target at the desired angle. The key of the guidance law is selecting a moving point on the collision line as the virtual target, and the tactical requirements can be fulfilled by the missile directly pursuing the virtual target. The Lyapunov stable theory is used to prove the convergence of the proposed guidance law. The guidance command is generated by a PID controller to make the missile towards the virtual target. The proposed guidance law makes the lateral acceleration of the missile converge to zero, which leads the angle of attack to zero, and it theoretically guarantees the flight path angle equals the attitude angle. Numerical simulations demonstrate this impact angle control guidance law is very accurate and robust. Regardless of whether the initial heading error is large or small, the missile which employs the proposed guidance law can always hit the target from the preset direction and the guidance process is smooth.

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