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terrestrial line-of-sight links

Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link

Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link

... clear Line Of Sight (LOS) is essential for effective communication in microwave links ...LOS links, the signal path are categorised into different Fresnel ...

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Evaluation of the Distribution of Terrain Roughness Index for Terrestrial Line of Site Microwave Links in Uyo Metropolis

Evaluation of the Distribution of Terrain Roughness Index for Terrestrial Line of Site Microwave Links in Uyo Metropolis

... geoclimatic factor [2]. In each of the three models, the geoclimatic factor for smooth terrain is higher than that of rough terrain. The geoclimatic factor over water surface is higher than both the one on smooth surface ...

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Differential Fade Depth with Path Length Adjustment (DFD-PLA) Method for Computing the Optimal Path Length of Terrestrial Fixed Point Line of Sight Microwave Link

Differential Fade Depth with Path Length Adjustment (DFD-PLA) Method for Computing the Optimal Path Length of Terrestrial Fixed Point Line of Sight Microwave Link

... In terrestrial Line of Site (LOS) microwave communication link design, the maximum path length depends, among other things, depends on the Free Space Path (FSP) loss and the maximum fade depth determine ...

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Measurement and Analysis of the Consistency of Rain Induced Impairment on Line of Sight Links in Middle Belt, Jos Nigeria

Measurement and Analysis of the Consistency of Rain Induced Impairment on Line of Sight Links in Middle Belt, Jos Nigeria

... of showery precipitation is about 10 – 15 minutes. It is formed below the Zero Degree Isotherm (ZDI) height through the process of accretion. Its formation is due largely to the rate of accretion, the thickness of ...

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A grid based coverage analysis of urban mmWave vehicular ad hoc networks

A grid based coverage analysis of urban mmWave vehicular ad hoc networks

... In this Letter, a tractable coverage model for urban mmWave ad hoc vehicular networks is presented for two different cases. It is shown that line processes can be used to model vehicular networks, which simplifies ...

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Developing an Electronic Health Record Training Program for New Employees

Developing an Electronic Health Record Training Program for New Employees

... identify the ways in which a nurse learns to incorporate the physical environment to guide further visual behaviors. This theory encompasses the contextual nature of the environment relative to the spatial layout and the ...

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Instructions

Instructions

... 2. Distance between sights, 31'/2 inches. Fixed barrel, the line of sight being always constant in comparison with a "breakdown" air rifle where the fore- sight is moved every ti[r] ...

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An Analysis of Selected Art Songs for High Voice by Adolphus Hailstork, A Performer's Guide

An Analysis of Selected Art Songs for High Voice by Adolphus Hailstork, A Performer's Guide

... The main objective of this study was to obtain the parameters required to estimate the local average power in line-of-sight (LOS) indoor settings at a frequency of 5.725 GHz. The estimation of the local ...

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The broad line region of active galactic nuclei: A self-consistent 3-dimensional model

The broad line region of active galactic nuclei: A self-consistent 3-dimensional model

... each line within a given model, differences between the form of ^£:w (r) for individual lines within each model, as illustrated in Figure ...radial line emissivity distributions, as shown in Figures ...the ...

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A Path Loss Model for Non Line of Sight Ultraviolet Multiple Scattering Channels

A Path Loss Model for Non Line of Sight Ultraviolet Multiple Scattering Channels

... Copyright © 2010 Haipeng Ding et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...

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Non Line Of Sight Environment based Localization in Wireless Sensor Networks

Non Line Of Sight Environment based Localization in Wireless Sensor Networks

... Obstacles blocking the direct path between nodes cause some error, called as Non-Line-Of-Sight (NLOS) errors, which positive biases the location estimates and affects the localization accuracy. The main ...

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Robust Estimator for Non-Line-of-Sight Error Mitigation in Indoor Localization

Robust Estimator for Non-Line-of-Sight Error Mitigation in Indoor Localization

... Indoor localization systems are undoubtedly of interest in many application fields. Like outdoor systems, they suffer from non- line-of-sight (NLOS) errors which hinder their robustness and accuracy. Though ...

8

The composition and distribution of dust along the line of sight toward the Galactic Center

The composition and distribution of dust along the line of sight toward the Galactic Center

... This paper discusses the composition of the hydrocarbon dust component, as well as the molecular cloud ices, along the line of sight to the Galactic center based on 2.5È13 km spectra from the Infrared Space ...

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Thermal non-line-of-sight imaging from specular and diffuse reflections

Thermal non-line-of-sight imaging from specular and diffuse reflections

... Measuring objects that are hidden from the view of a cam- era is an important problem in many research fields such as robotic vision, autonomous driving, medical imaging, and remote sensing. ...

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Link Budget Design for RF Line of Sight via Theoretical Propagation Prediction

Link Budget Design for RF Line of Sight via Theoretical Propagation Prediction

... Line-of-sight (LOS) link planning condition has been observed to have effects on the atmospheric factor which cause crucial signal loss. The main objective of the planning was to improve a set of a link ...

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Extended Kalman Filter Channel Estimation for Line of Sight Detection in WCDMA Mobile Positioning

Extended Kalman Filter Channel Estimation for Line of Sight Detection in WCDMA Mobile Positioning

... In mobile positioning, it is very important to estimate correctly the delay between the transmitter and the receiver. When the re- ceiver is in line-of-sight (LOS) condition with the transmitter, the ...

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Line of sight effects on observability of kink and sausage modes in coronal structures with imaging telescopes

Line of sight effects on observability of kink and sausage modes in coronal structures with imaging telescopes

... the line-of-sight (LOS), can be observed as emission intensity disturbances propagating along the loop provided the angle between the LOS and the structure is not ninety ...

7

Localization and dynamic link detection for geographic routing in non line of sight (NLOS) environments

Localization and dynamic link detection for geographic routing in non line of sight (NLOS) environments

... When there is a void that a device has no neighbor closest to the destination device, the face routing is used to route the packets around the void [1]. For the face routing, planarization algorithms such as the RNG [12] ...

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Optimal Design of Uniform Rectangular Antenna Arrays for Strong Line of Sight MIMO Channels

Optimal Design of Uniform Rectangular Antenna Arrays for Strong Line of Sight MIMO Channels

... Based on the new general geometrical model introduced for the uniform rectangular array (URA), which also incorpo- rates the uniform linear array (ULA), we have investigated the optimal design for ...

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Path reduction factor for microwave terrestrial links derived from the Malaysian meteorological radar data

Path reduction factor for microwave terrestrial links derived from the Malaysian meteorological radar data

... Radar data gives the averaged rainfall rate for a range-bin size of 1-km each. This rainfall data is used to calculate the rain attenuation for ‘virtual’ microwave links of 1 to 10-km path lengths. Attenuation due ...

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