Search results for: CHANNEL%20MODEL

• Handel Wewnętrzny

  Journals

  ISSN: 0438-5403

• Investigation of active channels in multi-channel surface arm EMG recordings for 24 different movements

  Publication

  • A. Akgul
  • M. Bedeloglu
  • C. Topcu
  • R. Sever
  • O. Ozkan
  • O. Ozkan
  • H. Uysal
  • O. Polat
  • O. Colak

  - Year 2014

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• Determination of selected parameters in a 1D open channel flow model

  Publication

  • K. Weinerowska-Bords

  - TASK Quarterly - Year 2007

  Określenie parametrów jest ważnym etapem tworzenia modelu matematycznego. W przypadku jednowymiarowego modelu przepływu ze swobodną powierzchnią opisanego układem równań de Saint-Venanta, jedną z grup parametrów wymagających identyfikacji są parametry związane z tarciem. Mogą one być określone w różny sposób, ale w większości przypadków problem ten stanowi zagadnienie żle postawione. W takich przypadkach najczęściej stosowaną...

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• CHANNELS

  Journals

  ISSN: 1933-6950 , eISSN: 1933-6969

• An Off-Body Channel Model for Body Area Networks in Indoor Environments

  Publication

  • S. J. Ambroziak
  • L. M. Correia
  • R. Katulski
  • M. Maćkowiak
  • C. Oliveira
  • J. Sadowski
  • K. Turbić

  - IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION - Year 2016

  This paper presents an off-body channel model for body area networks (BANs) in indoor environments. The proposed model, which is based on both simulations and measurements in a realistic environment, consists of three components: mean path loss, body shadowing, and multipath fading. Seven scenarios in a realistic indoor office environment containing typical scatterers have been measured: five were static (three standing and two...

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• A Wideband Channel Model for Body Area Networks in Circular Metallic Indoor Environments

  Publication

  • F. D. Cardoso
  • M. M. Ferreira
  • S. J. Ambroziak
  • L. M. Correia

  - IEEE Access - Year 2021

  In this paper, the wideband characterization of the propagation channel in circular metallic indoor environments is addressed, regarding Body Area Networks and 5G small cells, an analytical model for the dependence of the mean delay and the average delay spread on the circle radius, the working frequency and the distance between the transmitter and the receiver being proposed. The derivation of the model is initially done analytically,...

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• An Empirical Model for the Polarisation Characteristics of Indoor Off-Body Channels

  Publication

  • K. Turbić
  • S. J. Ambroziak
  • L. M. Correia

  - Year 2017

  This paper presents an analysis of the polarisation characteristics for the channel in dynamic off-body communications, and an empirical channel model, based on measurements performed at 2.45 GHz in an office environment. Body presence and propagation conditions have a strong influence on signal depolarisation. The model assumes three components for the total path loss: mean path loss, represented by a log-distance function with...

• Photogrammetric and computerized report on site model in feasibility study of navigability channel on vistula spit

  Publication

  • A. Janowski
  • J. Szulwic

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2008

  In the report the authors present a course of geodesic and geo-computerized works upon realization of feasibility study of navigability channel on Vistula Spit. A procedure of acquiring verification and modeling of data for requirements of a numeric model of a bottom and site has been presented with construction of original software for 3D visualization of the Vistula Spit area. The activities described in the report can be...

• Stationary underwater channel experiment: Acoustic measurements and characteristics in the Bornholm area for model validations

  Publication

  • I. Nissen
  • I. Kochańska

  - HYDROACOUSTICS - Year 2016

  The underwater acoustical channel is time-variant, and even on small time scales there is often existing no ‘acoustical frozen ocean’. Popular is the use of WSSUS-channel transmission modeling (Wide-Sense Stationary Uncorrelated Scattering) for the stochastic description of bandpass signals in GSM mobile phones with moving participants; since this results in a halved number of model parameters. For underwater sound applications...

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• An Approach to Mean Path Loss Model Estimation for Off-Body Channels

  Publication

  • S. J. Ambroziak
  • K. Turbić
  • L. M. Correia

  - Year 2017

  This paper presents an approach to estimation of the mean path loss model parameters in off-body Body Area Networks channels. In this approach, the path loss exponent is constrained to a value obtained for the line-of-sight (LoS) propagation in the co-polarised channel, considering a generalised static scenario. The comparison of the goodness of fit between the proposed approach and other approaches, for a set of measurements obtained...