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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Robust Formation Control for Multiple Unmanned Aerial Vehicles
无人机 稳健 编队控制
2023/4/21
The formation control problem for a group of unmanned aerial vehicles (UAVs) has attracted significant attention recently in multiple fields, such as robotics, aerospace, and wireless communication. U...
THE POTENTIAL OF LIGHT LASER SCANNERS DEVELOPED FOR UNMANNED AERIAL VEHICLES – THE REVIEW AND ACCURACY
UAV laser scanning light scanners accuracy review LiDAR
2016/10/14
Modern photogrammetry and remote sensing have found small Unmanned Aerial Vehicles (UAVs) to be a valuable source of data in various branches of science and industry (e.g., agriculture, cultural herit...
The
proposed approach is based on the observation that control strategies which
use feedbacks from a nite number of near neighbors can be associated with
corresponding continuous systems governed ...
Thermal and Mechanical Modeling of Fluid and Heat Flow in a Porous Metal Using Neural Networks for Application as TPS in Space Vehicles
Neyral Network Porous Media Prous Passages
2013/1/30
This paper contains novel model using feedback neural networks for a work piece temperature predic- tion.The heat and mass transfer in a porous metal workpiece which is heated by a fire gun is studied...
Thermal soaring flight of birds and unmanned aerial vehicles
Thermal soaring flight of birds unmanned aerial vehicles
2011/1/5
Thermal soaring saves much energy, but flying large distances in this form represents a great challenge for birds, people and Unmanned Aerial Vehicles (UAVs). The solution is to make use of so-called ...
Impact of aftertreatment devices on primary emissions and secondary organic aerosol formation potential from in-use diesel vehicles: results from smog chamber experiments
aftertreatment devices primary emissions secondary organic aerosol formation in-use diesel vehicles smog chamber experiments
2010/12/28
Diesel particulate matter (DPM) is a significant source of aerosol in urban areas and has been linked to adverse health effects. Although newer European directives have introduced increasingly stringe...
Tempo-spatial variation of emission inventories of speciated volatile organic compounds from on-road vehicles in China
Tempo-spatial variation speciated volatile organic compounds on-road vehicles China
2009/9/23
Emission inventories of sixty-seven speciated non-methane volatile organic compounds (NMVOC) from on-road vehicles in China were estimated for the period of 1980–2005, using seven NMVOC emission profi...
Synergistic applications of autonomous underwater vehicles and regional ocean modeling system in coastal ocean forecasting
Jet Propulsion Laboratory California Institute of Technology Raytheon Information Solutions California Polytechnic State University Rutgers University University of Miami
2014/4/18
The potential for using synergistic combinations of measurements from autonomous underwater vehicles
(AUVs) and output from three-dimensional numerical models for studying the central California coas...
Expert S-surface control for autonomous underwater vehicles
autonomous underwater vehicle S-surface control expert control intelligent integral fuzzy neural network
2011/9/14
S-surface control has proven to be an effective means for motion control of underwater autonomous vehicles (AUV). However there are still problems maintaining steady precision of course due to the con...
Nanoparticle formation in the exhaust of vehicles running on ultra-low sulfur fuel
exhaust of vehicle sulfur fuel
2008/11/17
The concern of adverse health impacts from exposure to vehicle-emitted nanoparticles has been escalating over the past few years. In order to meet more stringent EPA emission standards for particle ma...
Capturing vertical profiles of aerosols and black carbon over the Indian Ocean using autonomous unmanned aerial vehicles
Capturing vertical profiles aerosols black carbon Indian Ocean aerial vehicles
2008/10/29
Measurements of the vertical distribution of aerosol properties provide essential information for generating more accurate model estimates of radiative forcing and atmospheric heating rates compared w...
Advanced FNN control of mini underwater vehicles
College of Shipbuilding Engineering, Harbin Engineering University
2011/9/14
Fuzzy neural networks (FNN) based on Gaussian membership functions can effectively control the motion of underwater vehicles. However, their operating processes and training algorithms are complicated...
Synergistic applications of autonomous underwater vehicles and the regional ocean modeling system in coastal ocean forecasting
Synergistic applications of autonomous underwater vehicles and the regional ocean modeling system in coastal ocean forecasting
2014/5/16
The potential for using synergistic combinations of measurements from autonomous underwater vehicles (AUVs) and output from three-dimensional numerical models for studying the central California coast...
Valuable mineral resources are widely distributed throughout the seabed. autonomous underwater vehicles (AUVs) are preferable to remotely-operated vehicles (ROVs) when probing for such mineral resources as the extensive exploration area makes it difficult to maintain contact with operators. AUVs depend on batteries, so their power consumption should be reduced to extend exploration time. Power for conventional marine instrument systems is incorporated in their waterproof sealing. External intermittent control of this power source until termination of exploration is challenging due to limitations imposed by the underwater environment. Thus, the AUV must have a power control system that can improve performance and maximize use of battery capacity. The authors developed such a power control system with a three-step algorithm. It automatically detects underwater operational states and can limit power, effectively decreasing power consumption by about 15%.
surface piercing propeller boundary element method hydrodynamic characteristics
2011/9/13
Demand for high-speed marine vehicles (HSMVs) is high among both commercial and naval users. It is the duty of the marine vessel’s designer to provide a hull and propulsion system that diminishes drag...