Results 211 to 220 of about 9,429 (256)
Adaptive Relay Free Space Networking for Autonomous Underwater Drone Swarms. [PDF]
Sensors (Basel)Stack D, Nuti D, Rahmati M.
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Direct versus indirect line of sight (LOS) stabilization
IEEE Transactions on Control Systems Technology, 2003Two methods are analyzed for inertially stabilizing the pointing vector defining the line of sight (LOS) of a two-axis gimbaled laser tracker. Mounting the angular rate and acceleration sensors directly on the LOS axes is often used for precision pointing applications.
Peter J. Kennedy, Rhonda L. Kennedy
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Pulse detection algorithm for line-of-sight (LOS) UWB ranging applications
IEEE Antennas and Wireless Propagation Letters, 2005This paper presents an algorithm for precise determination of the distance between a pair of transmitting and receiving antennas using FCC conforming ultra-wideband (UWB) pulses. Indoor line-of-sight (LOS) measurements up to 24 m were conducted at Research Technoplaza, Nanyang Technological University, Singapore.
Z.N. Low +4 more
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An Analysis of Line of Sight (LoS) in Mobile Ad hoc Networks by varying Impairments
2019 10th International Conference on Computing, Communication and Networking Technologies (ICCCNT), 2019The era of multimedia communication is a major part and partial of each and every user life each task now depends very much on the internet. We believe that line-of-sight is the biggest problem many are facing. In particular, the problem of mobile station tracking at various base stations is considered.
C. R. Chethan +3 more
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Precoding for MIMO Systems in Line-Of-Sight (LOS) Environment
IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, 2007In line-of-sight (LOS) environments, the signal detection of multiple-input multiple-output (MIMO) systems becomes difficult because the correlation among channels becomes higher when the phase differences of direct paths are close to each other. In this paper, we propose a MIMO system with precoding to maximize the minimum distance (denoted hereafter ...
Kenichi Kobayashi 0002 +2 more
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MIMO Channel Capacity in an Indoor Line-Of-Sight (LOS) Environment
IEICE Transactions on Communications, 2005The effect of antenna correlation on the Multiple-Input Multiple-Output (MIMO) channel capacity in the real propagation environment is a topic of interest. In this paper, we present the results of a measurement campaign conducted in an indoor Line-Of-Sight (LOS) office environment.
Kei Sakaguchi +2 more
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Line of Sight (LoS) Underwater Wireless Optical Communication Based on LED
2018 9th International Symposium on Telecommunications (IST), 2018In this paper, we propose a communication system for an underwater environment based on the LED. Different modulation techniques examined under pure and coastal water. A BER analyzed to assess the system with a different situation. The simulation results indicate that a LED can be operated with a good received information quality under pure sea water ...
Mazin Ali A. Ali, Saad Khalid Rahi
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2016 International Conference on Circuit, Power and Computing Technologies (ICCPCT), 2016
This paper is written to convey the digital signal processing (DSP) issues experienced by wireless communication systems which are the limiting factors for enhanced spectral efficiency, link reliability and data rate, with respect to physical (PHY) layer and network throughput, latency and propagation delay pertaining to network layer for future ...
M. PremKumar +3 more
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This paper is written to convey the digital signal processing (DSP) issues experienced by wireless communication systems which are the limiting factors for enhanced spectral efficiency, link reliability and data rate, with respect to physical (PHY) layer and network throughput, latency and propagation delay pertaining to network layer for future ...
M. PremKumar +3 more
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Sliding mode control based line-of-sight (LOS) stabilization of electro-optical sighting system
2016 IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES), 2016Electro-optical sighting systems are used for surveillance, target acquisition and tracking. The stabilization of the line of sight (LOS) against vehicle-induced disturbances is an essential feature of the electro-optical gimbaled sighting systems, mounted on mobile platforms.
Shashi Singh +3 more
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A statistical model for line-of-sight (LOS) factory radio channels
IEEE 39th Vehicular Technology Conference, 2003A statistical model, based on experimental data, is presented to characterize the multipath propagation medium in typical manufacturing environments. This model includes the statistics of multipath propagation characteristics for cases of light and heavy clutter in a factory where there is a direct path from transmitter to receiver.
P. Yegani, C.D. McGillem
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