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Search results for: SYSTEM LOSS

Best results in : Research Potential Pokaż wszystkie wyniki (80)

Search results for: SYSTEM LOSS

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    1. Algorytmy sterowania zasobami energetycznymi odnawialnych źródeł energii; 2. Diagnostyka układów napędowych; 3. Diagnostyka i sterowanie w odnawialnych źródłach energii.

  • Zespół Systemów Geoinformatycznych

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    W katedrze prowadzone są badania naukowe w zakresie szeroko rozumianych Systemów Informacji Geograficznej (GIS). Tematyka badań obejmuje zastosowanie GIS w technologiach bezpieczeństwa, wizualizacje i analizy przestrzenne, systemy numerycznego prognozowania pogody, technologie nawigacji w ramach mobilnych systemów informacji przestrzennej, oraz zaawansowane techniki obrazowania satelitarnego. Katedra kontynuuje również badania...

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Search results for: SYSTEM LOSS

  • System Loss in UWB Off-Body Communications in a Ferry Environment

    Publication

    - Year 2018

    In this paper, the system loss in UWB off-body communications in a ferry environment based on measurements is presented. A mobile measurement set-up, consisting of WBAN nodes with UWB DWM1000 modules, was used. System loss was split into LOS and NLOS conditions. For the former, the smallest mean value, 24.4 dB, was obtained for the user approaching the fixed terminal, with the antenna on his chest, and the largest, 28.1 dB, for...

  • System Loss Model for Body Area Networks in Room Scenarios

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

    - Year 2023

    This paper presents an analysis of system loss in Body Area Networks for room scenarios, based on a wideband measurement campaign at 5.8 GHz. The measurements were performed with a fixed antenna transmitting vertically and horizontally polarised signals, while the user wears dualpolarised antennas. The average system losses in co- and crosspolarised channels are 41.4 and 42.6 dB for vertically polarised transmitted signals and...

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  • Mobility’s Influence on System Loss in Off-Body BAN Scenarios

    Publication

    - Year 2022

    In this paper, a measurement campaign for off body communications in an indoor environment is investigated for a set of on-body antennas. The channel impulse response was measured with the user approaching and departing from an off-body fixed antenna using two user dynamics, standing at fixed positions and walking. The processing of the measurement data allowed to evaluate system loss statistics. Different antenna configurations...

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  • Influence of User Mobility and Antenna Placement on System Loss in B2B Networks

    Publication

    - IEEE Access - Year 2022

    In this paper, the influence of user mobility and on-body antenna placement on system loss in body-to-body communications in indoor and outdoor environments and different mobility scenarios is studied, based on system loss measurements at 2.45 GHz. The novelty of this work lies on the proposal of a classification model to characterise the effect of user mobility and path visibility on system loss, allowing to identify the best...

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  • System Loss Model for Body-to-Body Networks in Indoor and Outdoor Environments

    Publication

    - Year 2023

    A system loss model for body-to-body networks in indoor and outdoor environments is proposed in this paper, based on measurements taken at 2.45 GHz. The influence of the type of environment, antenna visibility and user mobility on model parameters has been investigated. A significant impact of mutual antennas’ placement and their visibility is shown. The proposed model fits well to empirical data, with the average root mean square...

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