Results 61 to 70 of about 2,224 (162)

Development of Underwater Laser Scanner with Efficient and Flexible Installation for Unmanned Underwater Vehicle

한국해양공학회지, 2018
This paper proposes a vision-based underwater laser scanner with separate structures for an underwater camera and a line laser projector. Because the two devices can be adaptively placed regardless of the features of the unmanned underwater vehicle (UUV),
Yeongjun Lee, Yoongeon Lee, Junbo Chae, Hyun-Taek Choi, Tae-Kyeong Yeu   +4 more
doaj   +1 more source

Application of Motion Sensors for Beam-Tracking of Mobile Stations in mmWave Communication Systems

Sensors, 2014
In a millimeter wave (mmWave) communication system with transmit/receive (Tx/Rx) beamforming antennas, small variation in device behavior or an environmental change can destroy beam alignment, resulting in power loss in the received signal.
Duk-Sun Shim, Cheol-Kwan Yang, Jae Hwan Kim, Joo Pyo Han, Yong Soo Cho   +4 more
doaj   +1 more source

Sistem Navigasi pada Balon Udara Menggunakan GPS dan Kontrol Logika Fuzzy [PDF]

, 2016
Saat ini, pesawat tanpa awak adalah sarana yang potensial untuk tujuan eksplorasi. Salah satu jenis pesawat tanpa awak adaah balon udara. Balon udara sangat cocok digunakan untuk eksporasi pada kecepatan dan ketinggian yang rendah.
Dikairono, R. (Rudy), Kurniawan, D. A. (Dimas), Rivai, M. (Muhammad)   +2 more
core  

Implementation and performance evaluation of an inertial navigation system/global navigation satellite system real‐time kinematic Ntrip navigation system aided by a robot operating system‐based emulated odometer for high‐accuracy land vehicle navigation in urban environments

Engineering Reports, 2020
Advanced land‐vehicle navigation commonly uses integrated systems to counteract global navigation satellite system (GNSS) solution degradation. This occurs mainly in urban environments due to blockage of the satellite signals.
Jorge P. M. Galdames, Carlos E. Milhor, Daniel V. Magalhães, Glauco A. P. Caurin, Marcelo Becker   +4 more
doaj   +1 more source

A New Quaternion-Based Kalman Filter for Real-Time Attitude Estimation Using the Two-Step Geometrically-Intuitive Correction Algorithm

Sensors, 2017
In order to reduce the computational complexity, and improve the pitch/roll estimation accuracy of the low-cost attitude heading reference system (AHRS) under conditions of magnetic-distortion, a novel linear Kalman filter, suitable for nonlinear ...
Kaiqiang Feng, Jie Li, Xiaoming Zhang, Chong Shen, Yu Bi, Tao Zheng, Jun Liu   +6 more
doaj   +1 more source

Mobile Acquisition Unit [PDF]

, 2017
Cílem bakalářské práce je návrh a realizace softwaru pro sběr dat ze sensoru do počítače s linuxovým operačním systémem. Textová data s časovou známkou jsou synchronně po dávkách ukládaná do souboru a současně přeposílaná přes počítačovou sít. Video data
Gabriel Michal
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PC-based aviation training devices (PCATDs): research, development and certification [PDF]

, 2011
This paper examines the development of two PCATD’s (one helicopter, one fixed-wing) and their eventual certification by CAA. Certification has demonstrated the potential these devices have for aviation training in New Zealand.
Gilbey, Andrew, Hall, S, Jeffreys, L, Reweti, Savern   +3 more
core  

Carrier-phase GNSS attitude determination and control system for unmanned aerial vehicle applications [PDF]

, 2012
This paper presents the results of a research activity performed by Cranfield University to assess the potential of carrierphase Global Navigation Satellite Systems (GNSS) for attitude determination and control of small to medium size Unmanned Aerial ...
Bartel, C, Kaharkar, A, Rodriguez, L, Sabatini, R, Shaid, T   +4 more
core  

A fuzzy adaptive complementary filter for attitude estimation based on norm judgment

Measurement + Control
Unmanned aerial vehicle (UAV) has great application prospect because of its capability of three-dimensional space operation. The reliability of attitude and heading reference system (AHRS) for UAV attitude estimation is crucial for the application of UAV.
Pengcheng Jiang, Chang Liu, Hua Cong, Fuqiang Zhang   +3 more
doaj   +1 more source

A Novel AHRS Inertial Sensor-Based Algorithm for Wheelchair Propulsion Performance Analysis

Algorithms, 2016
With the increasing rise of professionalism in sport, athletes, teams, and coaches are looking to technology to monitor performance in both games and training in order to find a competitive advantage.
Jonathan Bruce Shepherd, Tomohito Wada, David Rowlands, Daniel Arthur James   +3 more
doaj   +1 more source