Cooperative Guidance Laws for Flight of Multiple UAVs Using Arrival Time Control

2019 ◽  
Author(s):  
Surrayya Mobeen ◽  
Umar Iqbal Bhatti
Keyword(s):  
Arrival Time ◽  
Time Control ◽  
Multiple Uavs ◽  
Cooperative Guidance ◽  
Guidance Laws

scholarly journals Terminal Distributed Cooperative Guidance Law for Multiple UAVs Based on Consistency Theory

2021 ◽  
Vol 11 (18) ◽  
pp. 8326
Author(s):  
Zhanyuan Jiang ◽  
Jianquan Ge ◽  
Qiangqiang Xu ◽  
Tao Yang
Keyword(s):  
Sliding Mode ◽  
Estimation Method ◽  
Time Control ◽  
Guidance Law ◽  
Maneuvering Targets ◽  
Multiple Uavs ◽  
Consistency Theory ◽  
Communication Topology ◽  
Cooperative Guidance ◽  
Equivalent Control

In order to realize a saturation attack of multiple unmanned aerial vehicles (UAVs) on the same target, the problem is transformed into one of multiple UAVs hitting the same target simultaneously, and a terminal distributed cooperative guidance law for multiple UAVs based on consistency theory is proposed. First, a new time-to-go estimation method is proposed, which is more accurate than the existing methods when the leading angle is large. Second, a non-singular sliding mode guidance law (NSMG) of impact time control with equivalent control term and switching control term is designed, which still appears to have excellent performance even if the initial leading angle is zero. Then, based on the predicted crack point strategy, the NSMG law is extended to attack maneuvering targets. Finally, adopting hierarchical cooperative guidance architecture, a terminal distributed cooperative guidance law based on consistency theory is designed. Numerical simulation results verify that the terminal distributed cooperative guidance law is not only applicable to different forms of communication topology, but also effective in the case of communication topology switching.

Coupling a genetic algorithm with the distributed arrival-time control for the JIT dynamic scheduling of flexible job-shops

2014 ◽  
Vol 52 (12) ◽  
pp. 3688-3709 ◽  
Author(s):  
Gabriel Zambrano Rey ◽  
Abdelghani Bekrar ◽  
Vittaldas Prabhu ◽  
Damien Trentesaux
Keyword(s):  
Genetic Algorithm ◽  
Arrival Time ◽  
Dynamic Scheduling ◽  
Job Shops ◽  
Time Control

scholarly journals Impact Time Control Cooperative Guidance Law Design Based on Modified Proportional Navigation

Aerospace ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 231
Author(s):  
Zhanyuan Jiang ◽  
Jianquan Ge ◽  
Qiangqiang Xu ◽  
Tao Yang
Keyword(s):  
Constant Velocity ◽  
Three Dimensional ◽  
Estimation Method ◽  
Time Varying ◽  
Two Dimensional ◽  
Proportional Navigation ◽  
Impact Time ◽  
Time Control ◽  
Guidance Law ◽  
Cooperative Guidance

The paper proposes a two-dimensional impact time control cooperative guidance law under constant velocity and a three-dimensional impact time control cooperative guidance law under time-varying velocity, which can both improve the penetration ability and combat effectiveness of multi-missile systems and adapt to the complex and variable future warfare. First, a more accurate time-to-go estimation method is proposed, and based on which a modified proportional navigational guidance (MPNG) law with impact time constraint is designed in this paper, which is also effective when the initial leading angle is zero. Second, adopting cooperative guidance architecture with centralized coordination, using the MPNG law as the local guidance, and the desired impact time as the coordination variables, a two-dimensional impact time control cooperative guidance law under constant velocity is designed. Finally, a method of solving the expression of velocity is derived, and the analytic function of velocity with respect to time is given, a three-dimensional impact time control cooperative guidance law under time-varying velocity based on desired impact time is designed. Numerical simulation results verify the feasibility and applicability of the methods.

scholarly journals Waypoint Position Optimization for Accurate Ground-Based Arrival Time Control of Aircraft

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Noboru Takeichi
Keyword(s):  
Arrival Time ◽  
Weather Forecast ◽  
Terminal Point ◽  
Time Uncertainty ◽  
Time Control ◽  
Control Window ◽  
Prediction And Control ◽  
Numerical Weather Forecast ◽  
Time Accuracy ◽  
And Control

In the ground-based arrival time control operation, the measurement of the arrival time error and the speed advisory to cancel it are performed at specific waypoint(s). It is generally recognized that the arrival time accuracy depends on the accuracy of trajectory prediction and control and the availability of information about the aircraft intent. Additionally, the position of the waypoint also determines the arrival time accuracy. Therefore, in this study, the feasibility of waypoint position optimization to improve the arrival time accuracy of aircraft controlled by ground-based speed advisory and its effectiveness are discussed. The models of flight time uncertainty and the arrival time control window were developed using the actual track and numerical weather forecast data. An optimization problem was formulated that defined the arrival time uncertainty at the terminal point as the objective function and numerically solved using sequential quadratic programming. Through numerical investigations, the feasibility of the waypoint position optimization and its effectiveness were clearly demonstrated in comparison with uniform arrangement cases. It was also clarified that the advantage of the multiple waypoint application was enhanced when larger arrival time control windows were available.

Real-time batch sequencing using arrival time control algorithm

2001 ◽  
Vol 39 (17) ◽  
pp. 3863-3880 ◽  
Author(s):  
Joonki Hong ◽  
Vittal Prabhu ◽  
Rick Wysk
Keyword(s):  
Real Time ◽  
Control Algorithm ◽  
Arrival Time ◽  
Time Control

Impact Time Control Guidance Law Considering Seeker's Field-of-View Constraint Without Time-to-Go Information

2016 ◽  
Vol 20 (3) ◽  
pp. 412-417
Author(s):  
Zhe Yang ◽  
◽  
Defu Lin ◽  
Luyao Zang
Keyword(s):  
Sliding Mode ◽  
Field Of View ◽  
Impact Time ◽  
Time Control ◽  
Guidance Law ◽  
Heading Angle ◽  
One And Many ◽  
The Look ◽  
The Impact ◽  
Guidance Laws

Accurate time-to-go estimation with large heading angle error is difficult for homing guidance laws, especially for the impact time control. Considering this, a new cooperative guidance law which requires no time-to-go estimation is investigated. First, the impact time control problem is transformed to the look angle command tracking problem. The look angle command guarantees that the range-to-go error converges to zero asymptotically. Then the proposed guidance law considering the seeker's field-of-view constraint is derived using sliding mode control to track the desired look angle signal. Numerical simulations are performed to verify the effectiveness of the proposed guidance law for one-to-one and many-to-one engagement scenarios.

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