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| 1 | Optimal three-dimensional impact time guidance with seeker’s field-of-view constraint显示文摘This paper proposes a new three-dimensional optimal guidance law for impact time control with seeker’s Field-of-View(FOV) constraint to intercept a stationary target. The proposed guidance law is devised in conjunction with the concept of biased Proportional Navigation Guidance(PNG). The guidance law developed leverages a nonlinear function to ensure the boundedness of velocity lead angle to cater to the seeker’s FOV limit. It is proven that the impact time error is nullified in a finite-time under the proposed method. Additionally, the optimality of the biased command is theoretically analyzed. Numerical simulations confirm the superiority of the proposed method and validate the analytic findings. | Shaoming HE Chang-Hun LEE Hyo-Sang SHIN Antonios TSOURDOS | 2021 | Chinese Journal of Aeronautics2021，34，2： | 6 |
| 2 | Review of hybrid electric powered aircraft,its conceptual design and energy management methodologies显示文摘The paper overviews the state-of-art of aircraft powered by hybrid electric propulsion systems.The research status of the design and energy management of hybrid aircraft and hybrid propulsion systems are further reviewed.The first contribution of the review is to demonstrate that,in the context of relatively underdeveloped electrical storage technologies,the study of mid-scale hybrid aircraft can contribute the most to both theoretical and practical knowledge.Meanwhile,the profits and potential drawbacks of applying hybrid propulsion to mid-scale hybrid airplanes have not been thoroughly illustrated.Secondly,as summed in the overview of design methodologies,the multi-objective optimization transcends the single-objective one.The potential of the hybrid propulsion system can be thoroughly evaluated in only one optimization run,if several objectives optimized simultaneously.Yet there are few researches covering the conceptual design of hybrid aircraft using multi-objective optimization.The review of the most popular energy management strategies discloses the third research gap—current methodologies favoured in hybrid ground vehicles do not consider the aircraft safety.Additionally,both non-causal and causal energy management are needed for performing a complicated flight mission with several sub-tasks. | Ye XIE Al SAVVARISAL Antonios TSOURDOS Dan ZHANG Jason GU | 2021 | Chinese Journal of Aeronautics2021，34，4： | 5 |
| 3 | High-fidelity trajectory optimization for aeroassisted vehicles using variable order pseudospectral method显示文摘In this study,the problem of time-optimal reconnaissance trajectory design for the aeroassisted vehicle is considered.Different from most works reported previously,we explore the feasibility of applying a high-order aeroassisted vehicle dynamic model to plan the optimal flight trajectory such that the gap between the simulated model and the real system can be narrowed.A highly-constrained optimal control model containing six-degree-of-freedom vehicle dynamics is established.To solve the formulated high-order trajectory planning model,a pipelined optimization strategy is illustrated.This approach is based on the variable order Radau pseudospectral method,indicating that the mesh grid used for discretizing the continuous system experiences several adaption iterations.Utilization of such a strategy can potentially smooth the flight trajectory and improve the algorithm convergence ability.Numerical simulations are reported to demonstrate some key features of the optimized flight trajectory.A number of comparative studies are also provided to verify the effectiveness of the applied method as well as the high-order trajectory planning model. | Runqi CHAI Antonios TSOURDOS AI SAVVARIS Senchun CHAI Yuanqing XIA | 2021 | Chinese Journal of Aeronautics2021，34，1： | 3 |
| 4 | Capturability of 3D RTPN guidance law against true-arbitrarily maneuvering target with maneuverability limitation显示文摘The capturability of the Three-Dimensional(3D)Realistic True Proportional Navigation(RTPN)guidance law is thoroughly analyzed.The true-arbitrarily maneuvering target is considered,which maneuvers along an arbitrary direction in 3D space with an arbitrary but upperbounded acceleration.The whole nonlinear relative kinematics between the interceptor and target is taken into account.First,the upper-bound of commanded acceleration of 3D RTPN is deduced,using a novel Lyapunov-like approach.Second,the reasonable selection range of navigation gain of3D RTPN is analyzed,when the maneuver limitation of interceptor is considered.After that,a more realistic definition of capture is adopted,i.e.,the relative range is smaller than an acceptable miss-distance while the approaching speed is larger than a required impact speed.Unlike previous researches which present Two-Dimensional(2D)capture regions,the inequality analysis technique is utilized to obtain the 3D capture region,where the three coordinates are the closing speed,transversal relative speed,and relative range.The obtained capture region could be taken as a sufficient-but-unnecessary condition of capture.The new theoretical findings are all given in explicit expressions and are more general than previous results. | Kebo LI Zhihui BAI Hyo-Sang SHIN Antonios TSOURDOS Min-Jea TAHK | 2022 | Chinese Journal of Aeronautics2022，35，7： | 2 |
| 5 | Quasilinear Parameter-Varying Autopilot Design Using Polynomial Eigenstructure Assignment with Actuator Constraints显示文摘 | Bruyere L Tsourdos A White B A | 2006 | Journal of Guidance Control and Dynamics2006，29，6： | 1 |
| 6 | Differential geomet- ric guidance based on the involute of the target ~s trajectory 显示文摘 | Ariff O Zbikowski R Tsourdos A | 2005 | Journal of Guidance Control and Dynamics2005，28，5： | 1 |
| 7 | Adaptive flight control designfor nonlinear missile显示文摘 | Tsourdos A White B A | 2005 | Control Engineering Practice2005，13，： | 1 |
| 8 | Robust covariance estimation for data fusion from multiple sensors显示文摘 | Sequeira J Tsourdos A Lazarus S B | | 0，，12： | 1 |
| 9 | Contaminant cloud boundary monitoring using network of UAV sensors显示文摘 | White B A Tsourdos A Ashokaraj I | 2008 | Sensors Journal2008，8，10： | 1 |
| 10 | Polynomial approach for design and robust analysis of lateral missile control 显示文摘 | Bruyere L Tsourdos A White BA | 2006 | International Journal of Systems Science2006，37，8： | 1 |
| 11 | Nonlinear relative posi- tion control of precise formation flying using polynomial eigen- structure assignment显示文摘 | Wang F Chen X Q Tsourdos A | 2011 | Acta Astronautica2011，68，1112： | 1 |
| 12 | Missile autopilot design using quasi-LPV polynomial eigenstructure assignment显示文摘 | White B A Bruyere L Tsourdos A | 2007 | IEEE Transactions on Aerospace and Electronic Systems2007，43，4： | 1 |
| 13 | Adaptive flight control design for nonlinear missile显示文摘 | TSOURDOS A WHITE B A | 2005 | Control Engineering Practice2005，13，3： | 1 |
| 14 | Adaptive flight control design for nonlinear missile 显示文摘 | Tsourdos A Brian A | 2005 | Control Engineering Practice2005，13，3： | 1 |
| 15 | 查看详情显示文摘 | A Tsourdos B A White | | 0，，： | 1 |
| 16 | Co-operative path planning of multiple UAVs using Dubins paths with clothoid arcs 显示文摘 | MADHAVAN SHANMUGAVEL ANTONIOS TSOURDOS BRIAN WHITE | 2010 | Control Engineering Practice2010，18，9： | 1 |
| 17 | Differential geometric guidance based on the involute of the target’s trajectory 显示文摘 | Ariff O Zbikowski R Tsourdos A | 2005 | Journal of Guidance Control and Dynamics2005，28，5： | 1 |
| 18 | Differential geometric guidance based on the involute of the target's trajectory显示文摘 | Zbikowski R Tsourdos A | 2005 | Journal of Guidance Control and Dynamics2005，28，5： | 1 |
| 19 | Missile autopilot design using quasi-LPV polynomial eigenstructure assignment 显示文摘 | Bruye're L Tsourdos A White B | 2007 | IEEE Transactions on Aerospace and Electronic Systems2007，43，4： | 1 |
| 20 | Differential geo-metric path planning of multiple UAVs显示文摘 | Madhavan Shanmugavel Antonios Tsourdos | 2007 | Journal of DynamicSystems Measurement and Control2007，129，： | 1 |
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