scholarly journals Time-Varying Asymmetric Barrier Lyapunov Function-Based Impact Angle Control Guidance Law With Field-of-View Constraint

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 185346-185359
Author(s):  
Jiayi Tian ◽  
Xibin Bai ◽  
Huabo Yang ◽  
Shifeng Zhang
Keyword(s):  
Lyapunov Function ◽  
Impact Angle ◽  
Field Of View ◽  
Time Varying ◽  
Barrier Lyapunov Function ◽  
Guidance Law

Field-of-view-constrained impact angle control guidance with error convergence before interception considering speed changes

2020 ◽  
pp. 095441002094201
Author(s):  
Jinrae Kim ◽  
Namhoon Cho ◽  
Youdan Kim
Keyword(s):  
Impact Angle ◽  
Field Of View ◽  
Time Varying ◽  
Angle Error ◽  
Proportional Navigation ◽  
Stationary Target ◽  
Guidance Law ◽  
Independent Variable ◽  
Angle Interval ◽  
The Impact

An impact angle control guidance law is proposed for stationary target interception considering missile's field-of-view limit and speed changes. The proposed impact angle control guidance law is structured as a biased proportional navigation with a time-varying bias. The proposed guidance law does not involve any switching logic for maintaining lock-on; hence, the guidance command is continuous during the entire engagement. Unlike the most existing studies, the proposed method guarantees that the impact angle error converges to zero before interception without the constant-speed assumption. To realize these desirable properties, the positive invariance of the bounded look angle interval and the change of independent variable are utilized. Numerical simulations are conducted to demonstrate the performance of the proposed guidance law.

scholarly journals Field-of-View and Impact Angle Constrained Guidance Law for Missiles With Time-Varying Velocities

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 61717-61727 ◽  
Author(s):  
Bojun Liu ◽  
Mingshan Hou ◽  
Yajun Li
Keyword(s):  
Impact Angle ◽  
Field Of View ◽  
Time Varying ◽  
Guidance Law

scholarly journals Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Zhe Yang ◽  
Hui Wang ◽  
Defu Lin
Keyword(s):  
Impact Angle ◽  
Field Of View ◽  
Line Of Sight ◽  
Terminal Phase ◽  
Time Varying ◽  
Guidance Law ◽  
Homing Missiles ◽  
Guidance Laws ◽  
Bias Terms ◽  
Impact Angle Constraint

Traditional guidance laws with range-to-go information or time-to-go estimation may not be implemented in passive homing missiles since passive seekers cannot measure relative range directly. A time-varying biased proportional guidance law, which only uses line-of-sight (LOS) rate and look angle information, is proposed to satisfy both impact angle constraint and seeker’s field-of-view (FOV) limit. In the proposed guidance law, two time-varying bias terms are applied to divide the trajectory into initial phase and terminal phase. The initial bias is designed as a function of LOS rate and look angle to maintain the seeker’s lock-on while the final bias eliminates the deviation between the integral value of angle control bias and the expected bias amount. A switching logic is adopted to change the biases continuously so that there is no abrupt acceleration change during the engagement. Extensive simulations considering both kinematic and realistic missile models are performed to illustrate the efficiency of the proposed method.

FOV constrained guidance law for nonstationary nonmaneuvering target interception with any impact angle

2021 ◽  
pp. 095441002110468
Author(s):  
Nikhil Kumar Singh ◽  
Sikha Hota
Keyword(s):  
Kinematic Model ◽  
Angular Spectrum ◽  
Impact Angle ◽  
Field Of View ◽  
Two Dimensional ◽  
Proportional Navigation ◽  
Guidance Law ◽  
Real World Applications ◽  
Target Interception ◽  
Impact Angles

This paper presents the nonstationary nonmaneuvering target interception with all possible desired impact angles in a two-dimensional (2D) aerial engagement scenario, where the target can move in any direction. The paper also considers the field-of-view (FOV) constraint for designing the guidance law so that the target is always visible while following the missile trajectory in the entire engagement time, which makes it feasible for real world applications. The guidance law is based on the pure proportional navigation (PPN) to achieve any impact angle of the entire angular spectrum. The proposed guidance law is then simulated for intercepting a nonstationary nonmaneuvering target using a kinematic model of a missile to demonstrate the efficacy of the presented scheme. A comparison with the related work existing in the literature has also been added to establish the superiority of the present work.

Look-Angle-Shaping Guidance Law for Impact Angle and Time Control With Field-of-View Constraint

2020 ◽  
Vol 56 (2) ◽  
pp. 1602-1612 ◽  
Author(s):  
Hyeong-Geun Kim ◽  
Jun-Yong Lee ◽  
Hyoun Jin Kim ◽  
Hyuck-Hoon Kwon ◽  
Jang-Seong Park
Keyword(s):  
Impact Angle ◽  
Field Of View ◽  
Time Control ◽  
Guidance Law

Tracking Control for Switched Nonlinear Systems Subject to Time-Varying Output Constraints

2012 ◽  
Author(s):  
Ben Niu ◽  
Georgi M. Dimirovski ◽  
Jun Zhao
Keyword(s):  
Nonlinear Systems ◽  
Lyapunov Function ◽  
Tracking Control ◽  
Closed Loop ◽  
Time Varying ◽  
Switched Nonlinear Systems ◽  
Feedback Form ◽  
Barrier Lyapunov Function ◽  
Output Constraints ◽  
Asymptotic Tracking

In this paper, we address the tracking control problem for switched nonlinear systems in strict-feedback form with time-varying output constraints. To prevent the output from violating the time-varying constraints, we employ a Barrier Lyapunov Function, which relies explicitly on time. Based on the simultaneous domination assumption, we design a controller for the switched system, which guarantees that asymptotic tracking is achieved without transgression of the constraints and all closed-loop signals remain bounded under arbitrary switchings. The effectiveness of the proposed results is illustrated using a numerical example.

scholarly journals Impact Angle Control Guidance Law Considering the Seeker’s Field-of-View Constraint Applied to Variable Speed Missiles

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 100608-100619
Author(s):  
Shou Zhou ◽  
Cheng Hu ◽  
Pan Wu ◽  
Shifeng Zhang
Keyword(s):  
Impact Angle ◽  
Field Of View ◽  
Variable Speed ◽  
Guidance Law
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