Results 41 to 50 of about 4,113,395 (325)
Mobile Robot Range Sensing through Visual Looming [PDF]
, 1998 This article describes and evaluates visual looming as a monocular range sensing method for mobile robots. The looming algorithm is based on the relationship between the displacement of a camera relative to an object, and the resulting change in the size
Gaudiano, Paolo, Sahin, Erol
core +4 more sources
Active Control of the Reflection Coefficient of an Underwater Surface
Acoustics, 2023 From a strategic point of view, it is essential to protect underwater vehicles from being detected by opponents. Modern mono- or bistatic sonar systems are capable of precisely determining the position of a watercraft.
Johannes Timmermann +2 more
doaj +1 more source
Integrated waveform for continuous active sonar detection and communication
IET radar, sonar & navigation, 2020 A novel integrated waveform (IW) for continuous active sonar detection and communications is proposed in this study based on a generalised sinusoidal frequency-modulated signal.
Jingwei Yin +3 more
semanticscholar +1 more source
Optimization of active sonar parameters in a measured environment
6th Underwater Acoustics Conference and Exhibition, 2021 Sonar operation in coastal waters is challenging due to high false alarm rates and strongly varying sonar conditions. Optimal choices for sonar design and pulse characteristics depend strongly on target location and velocity, as well as the present ...
K. Hjelmervik, E. M. Bøhler
semanticscholar +1 more source
SONAR, a nursing activity dataset with inertial sensors
Scientific Data, 2023 AbstractAccurate and comprehensive nursing documentation is essential to ensure quality patient care. To streamline this process, we present SONAR, a publicly available dataset of nursing activities recorded using inertial sensors in a nursing home. The dataset includes 14 sensor streams, such as acceleration and angular velocity, and 23 activities ...
Orhan Konak +12 more
openaire +4 more sources
CAAI Transactions on Intelligence Technology, EarlyView., 2023 Abstract The Internet of Things is emerging as a crucial technology in aiding humans and making their lives easier. Among the human population, a large percentage of people suffer from disabilities resulting in challenges in everyday life particularly people with visual disabilities.
Hania Tarik +8 more
wiley +1 more source
Study of reverberation pattern and its cancellation method in shallow water [PDF]
Theoretical and Applied Mechanics, 2007 In shallow water, the primary limitation of the performance of active sonar is the reverberation that originates from volume and boundaries scattering as well as multi-path propagation. Therefore, reverberation cancelation is an important research topic
Yang Shiuh-Kuang +2 more
doaj +1 more source
A Method for Field Calibration of a Multibeam Echo Sounder [PDF]
, 2011 The use of multibeam echo sounders (MBES) has grown more frequent in applications like seafloor imaging, fisheries, and habitat mapping. Calibration of these instruments is important for understanding and validating the performance of MBES.
Lanzoni, Carlo, Weber, Thomas C.
core +2 more sources
ARTMAP-FTR: A Neural Network For Fusion Target Recognition, With Application To Sonar Classification [PDF]
, 1998 ART (Adaptive Resonance Theory) neural networks for fast, stable learning and prediction have been applied in a variety of areas. Applications include automatic mapping from satellite remote sensing data, machine tool monitoring, medical prediction ...
Carpenter, Gail A. +2 more
core +2 more sources
AUV SLAM and experiments using a mechanical scanning forward-looking sonar [PDF]
, 2012 Navigation technology is one of the most important challenges in the applications of autonomous underwater vehicles (AUVs) which navigate in the complex undersea environment.
ArulamPalam +29 more
core +4 more sources