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Lingzhi Yin and Yafei Wang
Delving into the spatiotemporal evolution of the railway network in different periods can provide guidance and reference for the planning and layout of the railway network. However, most of the existing studies tended to model the railway data separately...
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Huimeng Wang, Yunyan Du, Jiawei Yi, Nan Wang and Fuyuan Liang
Real-word phenomena, such as ocean eddies and clouds, tend to split and merge while they are moving around within a space. Their trajectories usually bear one or more branches and are accordingly defined as complex trajectories in this study. The traject...
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Jingxin Guan, Jun Huang, Lei Song and Xiaoqiang Lu
To find a trajectory with low radar detection probability for stealth aircraft under the assumption of 2D space, performing a rapid turning maneuver is a useful way to reduce the radar detection probability of an aircraft by changing the azimuth angle ra...
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Anqing Wang, Longwei Li, Haoliang Wang, Bing Han and Zhouhua Peng
In this paper, a swarm trajectory-planning method is proposed for multiple autonomous surface vehicles (ASVs) in an unknown and obstacle-rich environment. Specifically, based on the point cloud information of the surrounding environment obtained from loc...
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Gang Huang, Min Hu, Xueying Yang and Peng Lin
Multi-UAV cooperative trajectory planning (MUCTP) refers to the planning of multiple flyable trajectories based on the location of each UAV and mission point in a complex environment. In the planning process, the complex 3D space structure increases the ...
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Wenbo Li, Wentao Li, Lin Cheng and Shengping Gong
Space vehicles? real-time trajectory optimization is the key to future automatic guidance. Still, the current sequential convex programming (SCP) method suffers from a low convergence rate and poor real-time performance when dealing with complex obstacle...
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Yahui Gan, Jinjun Duan, Ming Chen and Xianzhong Dai
In this paper, the trajectory planning and position/force coordination control of multi-robot systems during the welding process are discussed. Trajectory planning is the basis of the position/ force cooperative control, an object-oriented hierarchical p...
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Alain Lefebvre and Camille Dezécache
The phytoplankton compartment is particularly reactive to changes in nutrient concentration and is used as a quality indicator. Using a simple numerical approach, the response of emblematic harmful taxa from the eastern English Channel and southern North...
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Boris Pospelov,Vladimir Andronov,Evgeniy Rybka,Olekcii Krainiukov,Kostiantyn Karpets,Oleksandr Pirohov,Iryna Semenyshyna,Ruslan Kapitan,Alona Promska,Oleksii Horbov
Pág. 39 - 46
The correlation method for operative detection of recurrent states in complex dynamical systems at irregular measurements was proposed. The concepts of correlation for the case of the vectors of states of the trajectory of dynamics of complex systems and...
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Ander Iriondo, Elena Lazkano, Loreto Susperregi, Julen Urain, Ane Fernandez and Jorge Molina
Programming robots to perform complex tasks is a very expensive job. Traditional path planning and control are able to generate point to point collision free trajectories, but when the tasks to be performed are complex, traditional planning and control b...
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Giacomo Borelli, Gabriella Gaias and Camilla Colombo
In recent years, the interest in proximity operations to uncooperative and non-collaborative objects has been growing and and demanding for specific technology advances to tackle these challenging cases of in-orbit servicing and removal missions. Indeed,...
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Pin Nie, Zhenjie Chen, Nan Xia, Qiuhao Huang and Feixue Li
Automatic Identification System (AIS) data have been widely used in many fields, such as collision detection, navigation, and maritime traffic management. Similarity analysis is an important process for most AIS trajectory analysis topics. However, most ...
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Daigang Li, Junhan Li and Juntao Li
Many studies have utilized global navigation satellite system (such as global positioning system (GPS)) trajectories in order to successfully infer road networks because such data can reveal the geometry and development of a road network, can be obtained...
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Jie Wang, Min Cheol Lee, Karam Dad Kallu, Saad Jamshed Abbasi and Seokyoung Ahn
This paper proposes a new designed trajectory tracking method for a hydraulic manipulator, which is the terminal sliding mode control with sliding perturbation observer (TSMCSPO). The dynamics of the hydraulic system are complex and uncertain, it also ge...
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David W. Hinckley, Jr. and Darren L. Hitt
In this paper, we use differential evolution (DE), with best-evolved results refined using a Nelder?Mead optimization, to solve boundary-value complex problems in orbital mechanics relevant to low Earth orbits (LEO). A class of Lambert-type problems is e...
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David W. Hinckley, Jr. and Darren L. Hitt
In this paper, we use differential evolution (DE), with best-evolved results refined using a Nelder?Mead optimization, to solve boundary-value complex problems in orbital mechanics relevant to low Earth orbits (LEO). A class of Lambert-type problems is e...
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Siyao Yan, Jing Zhang, Mosharaf Md Parvej and Tianchi Zhang
This paper proposes a novel Sea Drift Trajectory Prediction method based on the Quantum Convolutional Long Short-Term Memory (QCNN-LSTM) model. Accurately predicting sea drift trajectories is a challenging task, as they are influenced by various complex ...
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Yingkai Xia, Zhemin Huang, Kan Xu, Guohua Xu and Ye Li
This paper proposes a novel three-dimensional trajectory tracking control methodology for a heterogeneous X-rudder autonomous underwater vehicle (XAUV) that can achieve finite-time convergence, complex actuator dynamics handling, and energy-efficient opt...
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Leyang Zhao, Li Yan, Xiao Hu, Jinbiao Yuan and Zhenbao Liu
The ability of an autonomous Unmanned Aerial Vehicle (UAV) in an unknown environment is a prerequisite for its execution of complex tasks and is the main research direction in related fields. The autonomous navigation of UAVs in unknown environments requ...
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Jacopo M. Abbruzzese and Vincent Labiouse
Most rock fall hazard zoning methodologies are currently based on trajectory modelling, usually performed along 2D slope profiles. For many topographic configurations, this approach cannot provide a realistic description of the way rock fall trajectories...
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