A Non-Switching Guidance Law for Impact Angle Constrained Interception of Moving Targets

2017 ◽  
Author(s):  
Vairavan A ◽  
Ashwini Ratnoo
Keyword(s):  
Impact Angle ◽  
Moving Targets ◽  
Guidance Law

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.

Trajectory shaping guidance law design using constraint-combining multiplier

2021 ◽  
pp. 095441002098637
Author(s):  
Min-Guk Seo ◽  
Chang-Hun Lee ◽  
Tae-Hun Kim
Keyword(s):  
Design Method ◽  
Impact Angle ◽  
State Variables ◽  
Flight Trajectory ◽  
Potential Significance ◽  
Guidance Law ◽  
Terminal Constraints ◽  
The Impact ◽  
Guidance Laws ◽  
Impact Angle Constraint

A new design method for trajectory shaping guidance laws with the impact angle constraint is proposed in this study. The basic idea is that the multiplier introduced to combine the equations for the terminal constraints is used to shape a flight trajectory as desired. To this end, the general form of impact angle control guidance (IACG) is first derived as a function of an arbitrary constraint-combining multiplier using the optimal control. We reveal that the constraint-combining multiplier satisfying the kinematics can be expressed as a function of state variables. From this result, the constraint-combining multiplier to achieve a desired trajectory can be obtained. Accordingly, when the desired trajectory is designed to satisfy the terminal constraints, the proposed method directly can provide a closed form of IACG laws that can achieve the desired trajectory. The potential significance of the proposed result is that various trajectory shaping IACG laws that can cope with various guidance goals can be readily determined compared to existing approaches. In this study, several examples are shown to validate the proposed method. The results also indicate that previous IACG laws belong to the subset of the proposed result. Finally, the characteristics of the proposed guidance laws are analyzed through numerical simulations.

scholarly journals Three-Dimensional Fixed-Time Cooperative Guidance Law With Impact Angle Constraint and Prespecified Impact Time

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 29755-29763
Author(s):  
Mu Lin ◽  
Xiangjun Ding ◽  
Chunyan Wang ◽  
Li Liang ◽  
Jianan Wang
Keyword(s):  
Three Dimensional ◽  
Fixed Time ◽  
Impact Angle ◽  
Impact Time ◽  
Guidance Law ◽  
Cooperative Guidance ◽  
Impact Angle Constraint

Quaternion Based Three-Dimensional Impact Angle Control Guidance Law

2021 ◽  
pp. 1-1
Author(s):  
Jeong-Hun Kim ◽  
Sang-Sup Park ◽  
Kuk-Kwon Park ◽  
Chang-Kyung Ryoo
Keyword(s):  
Three Dimensional ◽  
Impact Angle ◽  
Guidance Law

Impact Angle Constrained Guidance Law for Intercepting Non-maneuvering Targets Avoiding Obstacles

2022 ◽  
Author(s):  
Prajapati D. Dharmendrabhai ◽  
Akash Gholap ◽  
Nikhil K. Singh ◽  
Sikha Hota
Keyword(s):  
Impact Angle ◽  
Guidance Law ◽  
Maneuvering Targets
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