Results 71 to 80 of about 85,923 (287)

The Impact of Interference on GNSS Receiver Observables – A Running Digital Sum Based Simple Jammer Detector [PDF]

, 2014
A GNSS-based navigation system relies on externally received information via a space-based Radio Frequency (RF) link. This poses susceptibility to RF Interference (RFI) and may initiate failure states ranging from degraded navigation accuracy to a ...
Airos, E., Bhuiyan, M. Z. H., Kuusniemi, H., Soderholm, S.   +3 more
core   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

BIM-based space management system for operation and maintenance phase in educational office buildings

Journal of Civil Engineering and Management, 2020
Lists and floor plans have been widely adopted as space management tools for educational office buildings. However, the two-dimensional floor plans fail to present the indoor complexity, which hinders users from intuitively observing the indoor equipment
Guofeng Ma, Xue Song, Shanshan Shang
doaj   +1 more source

Cooperative localization by dual foot-mounted inertial sensors and inter-agent ranging

, 2013
The implementation challenges of cooperative localization by dual foot-mounted inertial sensors and inter-agent ranging are discussed and work on the subject is reviewed. System architecture and sensor fusion are identified as key challenges. A partially
Händel, Peter, Nilsson, John-Olof, Skog, Isaac, Zachariah, Dave   +3 more
core   +1 more source

Experiencing Indoor Navigation on Mobile Devices [PDF]

IT Professional, 2014
Indoor GPS navigation is unreliable owing to poor communication with satellites and a lack of detailed maps. The authors discuss technologies that offer accurate indoor location and orientation data, presenting their system for indoor navigation, which runs on a smartphone. The Web extra at http://youtu.be/cfOSNjyD15A illustrates the prototypal system.
BARBERIS, CLAUDIA, BOTTINO, ANDREA GIUSEPPE, MALNATI, GIOVANNI, MONTUSCHI, PAOLO   +3 more
openaire   +2 more sources

Extending Battery Usage Time of a Heavy‐Duty Mecanum‐Wheeled Autonomous Electric Vehicle Used in Iron–Steel Industry by Considering Wheel Slippage

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
It is a fact that slippage causes tracking errors in both longitudinal and lateral directions which results to have less travel distance in tracking a reference trajectory. Less travel distance means having energy loss of the battery and carrying loads less than planned.
Gokhan Bayar, Goktug Hambarci, Ali Sezai Demirel   +2 more
wiley   +1 more source

A Low-Cost Underground Garage Navigation Switching Algorithm Based on Kalman Filtering

Sensors, 2019
Modern parking lots have gradually developed into underground garages to improve the efficient use of space. However, the complex design of parking lots also increases the demands on vehicle navigation. The traditional method of navigation switching only
Ningbo Li, Yanbin Gao, Ye Wang, Zhejun Liu, Lianwu Guan, Xin Liu   +5 more
doaj   +1 more source

SLAM and Navigation in Indoor Environments [PDF]

, 2011
In this paper, we propose a system for wheeled robot SLAM and navigation in indoor environments. An omni-directional camera and a laser range finder are the sensors to extract the point features and the line features as the landmarks. In SLAM and self-localization while navigation, we use extended Kalman filter (EKF) to deal with the uncertainty of ...
Shang-Yen Lin, Yung-Chang Chen
openaire   +1 more source

High‐Speed Altitude Regulation With Neuromorphic Camera and Lightweight Embedded Computation

Advanced Intelligent Systems, EarlyView.
Neuromorphic cameras deliver rapid, high‐dynamic‐range sensing but overwhelm embedded processors at high speeds. This work presents a lightweight, optimized Lucas–Kanade optical flow method with parallelization, gyroscopic derotation, and adaptive event slicing.
Simon L. Jeger, Alessandro Marchei, Charbel Toumieh, Dario Floreano   +3 more
wiley   +1 more source

Collaborative Visual Localization for Modular Self‐Reconfigurable Robots

Advanced Intelligent Systems, EarlyView.
Relative localization in modular self‐reconfigurable robots is challenged by hardware limitations, constrained fields of view, and sensor faults. This paper, based on the SnailBot platform, presents a vision‐based collaborative localization method that combines ArUco markers with learning‐based algorithms to enable robust pose estimation from ...
Guanqi Liang, Rong Ou, Peiqi Wang, Xianghong Wang, Tin Lun Lam   +4 more
wiley   +1 more source