Results 61 to 70 of about 1,256,631 (255)

Biological Studies. Annual Report, Part 5, September 1972

, 1972
(54 page document)Office of Sea Grant Programs, National Oceanic and Atmospheric Administration, Department of CommerceAssociation of Monterey Bay Area GovernmentsContains four reports.

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Air-to-Air Automatic Landing of Unmanned Aerial Vehicles: A Quasi Time-Optimal Hybrid Strategy [PDF]

, 2020
It is well known that small electric Unmanned Aerial Vehicles (UAVs) suffer from low endurance problems. A possibility to extend the range of UAV missions could be to have a carrier drone with several lightweight multirotors aboard, which can take-off ...
Lovera, Marco, Gozzini, Giovanni, Giurato, Mattia, Gozzini, G., Invernizzi, Davide, Giurato, M., Panza, Simone, Lovera, M., Invernizzi, D., Panza, S.   +9 more
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Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

Advanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings, Levanya Dewanarayana, Iline Shaju, Haider Al‐Wizni, Sampson Marquis, Weicheng Huang, Pooya Sareh   +6 more
wiley   +1 more source

Technical Feasibility Study of Autonomous Field Robot‐Based on‐the‐go Assessment of Soil Nutrients Using Ion‐Sensitive Field‐Effect Transistors

Advanced Robotics Research, EarlyView.
Autonomous field robots equipped with ISFET‐based sensors enable rapid, spatially resolved soil nutrient analysis directly in the field. An automated system based on the BoniRob platform is presented for standardized on‐site extraction and measurement of key macronutrients and soil pH.
Vadim Riedel, Stefan Hinck, Edgar Peiter, Arno Ruckelshausen   +3 more
wiley   +1 more source

A Worm‐Inspired Origami Robot with Multimodal Locomotion for Adaptive Mobility in Complex Pipeline Environments

Advanced Science, EarlyView.
An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang, Kangning Tan, Zihan He, Hongsen Pang, Yanjie Wang, Hongbin Fang, Jian Xu   +6 more
wiley   +1 more source

A Funnel-Based Framework for Quantitative Safety Metric Construction and Safety-Metric-Driven Control Synthesis of Automatic Carrier Landing Systems

Aerospace
Current research on Automatic Carrier Landing Systems (ACLSs) primarily focuses on guidance and control performance metrics. However, safety metrics that quantitatively characterize the safe region of ACLSs are equally crucial for guaranteeing safe ...
Zhen Liu, Jianjun Luo, Yunzhao Liu, Weihua Ma   +3 more
doaj   +1 more source

Navigation System for Reusable Launch Vehicle [PDF]

, 2008
PHOENIX is a downscaled experimental vehicle to demonstrate automatic landing capabilities of future Reusable Launch Vehicles (RLVs). PHOENIX has flown in May 2004 at NEAT (North European Aerospace Test range) in Vidsel, Sweden.
Schlotterer, Markus
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A Versatile‐Designable Framework for Active and Programmable Shape‐Morphing Soft Matter Systems: From Inverse Design to Closed‐Loop Control

Advanced Science, EarlyView.
A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu, Peiling Xie, Ruitong Song, Banghan Liu, Rui Guo, Jiu‐an Lv   +5 more
wiley   +1 more source

An Advanced Control Method for Aircraft Carrier Landing of UAV Based on CAPF–NMPC

Aerospace
This paper investigates a carrier landing controller for unmanned aerial vehicles (UAVs), and a nonlinear model predictive control (NMPC) approach is proposed considering a precise motion control required under dynamic landing platform and environment ...
Danhe Chen, Lingfeng Xu, Chuangge Wang
doaj   +1 more source

ISPA 95. Precision approach and automatic landing Proceedings

, 1995
The present volume ISPA '95 Symposium contains 53 papers. The topics range from instrument landing systems and its transition directly to GNSS (Global Navigation Satellite System), developments for surface movement, guidance and control (SMGCS), enhanced
Deutsche Gesellschaft fuer Ortung und Navigation e.V. (DGON), Duesseldorf (Germany)
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