radio wave propagation environment
Geometrically Based Channel Model for Indoor Radio Propagation with Directional Antennas
... Abstract—A geometrically based channel model is proposed to describe radio propagation in an indoor environment with directional antennas. In conventional geometric channel models (GCMs), ...
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Analysis and Verification of Core Factors in Radio Wave Propagation Loss
... the propagation model covers almost the propagation of ITU Recommendation model, and it make the results of analysis scientific by adding station data and antenna ...P.1546 propagation model are ...
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Radio Wave Propagation Experiment in Sugarcane Fire Environments
... enriched nutrients, such as potash, are often used to supplement soil fertility in cane paddocks in order to in- crease crop yields. Potassium content in sugar cane may be up to 2.2% on dry weight basis. In northeast ...
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Identification and Modeling of Radio Wave Propagation Channel in Industrial Environments
... performed by a signal generator and digital oscilloscope in UHF frequencies of about 1300 MHz.The measured data are used for extraction of various narrow channels and power delay features to determine multi-path channel ...
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Radio wave propagation in curved rectangular tunnels at 5 8 GHz for metro applications, simulations and measurements
... of environment and particularly tunnels for metro ...the radio wave propagation in straight tunnels with an arch-shaped cross section and in curved tunnels with a rectangular cross ...
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Development of Radio Wave Propagation Model in Indoor Non-Line-of-Sight (NLOS) Scenario
... Radio wave propagation describes a significant role in the performance of radio ...systems. Radio waves, i.e. electromagnetic waves, are propagated in a radio channel that is ...
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Index Terms - Radio Wave Propagation, Doppler Effect, indoor propagation models, path loss
... In both outdoor and indoor environments, the average large scale path loss for a random transmitter to receiver separation is expressed as a function of distance by the use of path loss exponent n. The value of n depends ...
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UHF Wave Propagation in Mine Shaft Environment
... There have been numerous studies on the radio propagation in underground tunnels or road/rail tunnels in the past decades. Some path loss models have been proposed, such as waveguide models [4], ray tracing ...
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Horizontal Diffraction in Multiple Obstacles Using Parabolic Equation with Recursive Convolution Nonlocal Boundary Conditions
... forward propagation approximation, then the second order elliptic equations are simplified into first order parabolic equation on direction of propagation [1, ...the environment where mediums are ...
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A Novel Wavelet-Galerkin Method for Modeling Radio Wave Propagation in Tropospheric Ducts
... parabolic wave equation to incorporate the impedance boundary ...radiowave propagation in troposphere is also ...both environment conditions — standard and ...
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Interpretation and Classification of P Series Recommendations in ITU R
... of radio propagation, the model- ling analysis of the wireless environment, and the methods of the propagation prediction in different environ- ment and ...the wave propagation ...
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Simulation and Analysis of Millimeter Wave Propagation Characteristics in Complex Office Environment
... the propagation characteristics of the indoor radio wave can be divided into two types, one is the empirical model, and the other is the deterministic ...complex propagation, and it can find ...
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Reconfigurable antennas and radio wave propagation at millimeter-wave frequencies
... study radio wave propagation peculiarities at mm-wave frequencies in indoor and outdoor environments to be able to deploy wireless networks ...The propagation part of the thesis focuses ...
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Simulation and Analysis of 60ghz Millimeter-Wave Indoor Propagation Characteristics Base on the Method of Sbr/Image
... complex environment, but the prediction accuracy of this method is affected by the radius of receiving ...actual environment, and it is ...complex propagation environment, and it can find all ...
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Radiowave propagation measurements and prediction in bushfires
... incident radio wave to the fire plume through collision with inherent neutral ...on radio wave ...that radio wave attenuation is significantly higher at UHF and X-Band ...
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Radiowave propagation measurements and prediction in bushfires
... (UHF) radio communications systems are in constant use by suppression crews in ...(VHF) radio communications are reported to be failing in extreme bushfire ...of radio communication failure tend to ...
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Fast algorithm for radio propagation modeling in realistic 3-D urban environment
... In order to determine the path loss of macro cells, which are usually installed on rooftops, we use a path loss model that is proposed in ICT-317669 METIS (2013). This model takes into account the diffraction effects ...
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II. SYSTEM OF MOTION EQUATIONS
... study of the wave’s propagation in continuous media refers to the actual problems of mechanics and mathematical physics. Such investigations are associated with the solution of boundary value problems for systems ...
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Indoor Radio Propagation
... measurement environment includes the place where measurements are taken and its distinctive characteristics such as the material used for the wall or size of the ...measurement environment, and several ...
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Sputter deposited tin oxide thin film properties and their application for radio wave propagation
... Figure-5b shows the transmission respond of microwave signal through glass coated with SnO2 thin film deposited at various O2 flow ratios.. The rf discharge power was fixed at 225 W.[r] ...
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