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Now showing items 63-82 of 99

  • Nonlinear response of dipolar systems to superimposed ac and dc bias fields 

    Wei, Nijun (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2016)
    The main purpose of this thesis is to study the nonlinear ac stationary response of dipolar systems to superimposed ac and dc bias fields via the rotational Brownian motion model. In this way we investigate (i) the nonlinear ...
  • Numerical methods for the high speed solution of integral equations in wireless communications 

    O'Nuallain, Eamonn Pol (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2001)
    This thesis investigates the the appropriateness of integral equations for use in determining electric field coverage over sub-urban terrain which is illuminated by an arbitrarily placed transmitter. Sub-urban terrain is ...
  • On the Performance and Design Tradeoffs of Low Altitude UAV Small Cells in Urban Environments 

    GALKIN, BORIS (Trinity College Dublin. School of Engineering. Discipline of Electronic & Elect. Engineering, 2019)
    Cellular data demand continues to increase from year to year, and to manage this rising demand network operators adopt new technologies and designs for their cellular networks. Among these, network densification is seen ...
  • Optimised real-time rendering of auditory events in immersive virtual environments 

    Gorzel, Marcin (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2014)
    This project looks at the problem of the capture or synthesis of acoustic events in reverberant spaces and their subsequent plausible reproduction in a virtual version of the original space, otherwise known as a Virtual ...
  • Optimum stability in control system design 

    Cogan, Brian (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2007)
    This thesis develops for the first time a general approach to the design of control systems that emphasizes optimum system stability as the primary design criterion. The design method is to select controller parameters ...
  • Perception of true linear self-motion using vestibular stimulation in humans : a mathametical electrophysiological analysis 

    Nolan, Hugh (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2013)
    In humans, the percept of motion is a combination ol multiple sensors modalities, primarily involving vestibular, visual and somatosensory (Ohmi, 1996). The ability to properly perceive motion enables us to function normally ...
  • Perceptually motivated audio time-frequency analysis 

    O'Donovan, Jonathan (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2001)
    Fourier analysis has long been an indispensable tool for the investigation of signals whose frequency content does not change with time. It has likewise been of fundamental importance in engineering for the study of linear ...
  • Predicting speech intelligibility 

    Hines, Andrew (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2012)
  • Probing the neural mechanisms of adult-onset isolated focal dystonia 

    QUINLIVAN, BRENDAN (Trinity College Dublin. School of Engineering. Discipline of Electronic & Elect. Engineering, 2018)
    Adult onset isolated focal dystonia (AOIFD) is inherited in an autosomal dominant manner with a reduced penetrance of 12-15%; cervical dystonia (CD) is the most common phenotype in northern Europe. It is believed that the ...
  • Quantitative assessment of perceptual, motor and cognitive function in Parkinson's disease and their contribution to freezing of gait 

    Feron, Conor (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2016)
  • Quasiprobability density diffusion equations for the quantum Brownian motion in a potential 

    Mulligan, Bernard Patrick James (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2007)
    Wigner's [E. P. Wigner, Phys. Rev., 1932, 40, 749] representation of the density operator as a c-number quasiprobablity distribution in phase space allowing quantum mechanical averages involving the density matrix to be ...
  • Radical plumbers and playpumps 

    Borland, Ralph (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2011)
    This thesis analyses the PlayPump, a water pump powered by a children's roundabout, which is designed for use in the developing world. The PlayPump is analysed as an example of 'design for development', an area of current ...
  • Radio Access Network and Spectrum Sharing in Future Mobile Networks 

    KIBILDA, JACEK (2016)
    Future mobile networks will be characterized by wide-spread resource sharing, and a more nuanced view of what it means to offer a mobile service. The traditional view of a mobile network as a system that simply delivers ...
  • Real-time out-of-band interference reduction for OFDM-based systems 

    Selim, Ahmed (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2012)
    Interference reduction for OFDM-based systems is of increasing interest in new technologies such as dynamic spectrum access networks. In the past decade, many approaches have been proposed for reducing the interference of ...
  • Reconfigurable OFDM systems 

    Nolan, Keith E. (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2005)
    Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier wireless transmission technique. OFDM is used for robust, high quality and high data-rate music, voice, images, video, news and data broadcasts. It is ...
  • Reconfigurable software radio systems 

    Mackenzie, Philip (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2004)
    Software radio has been heralded as a significant evolutionary step for wireless technology as it allows dedicated analogue radio hardware to be replaced with flexible digital signal processing. Due to current technological ...
  • Relationship between the molecular interaction and the structure of the bent core liquid crystals in the nematic phase 

    Jang, Yun (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2012)
    The relationship between the molecular interaction and the molecular structure of the bent core mesogens in the nematic phase is investigated in detail. Various physical phenomena are observed and interpreted.
  • Rendezvous and coordination in OFDM-based dynamic spectrum access networks 

    Sutton, Paul (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2008)
    This dissertation shows that intentionally embedded cyclostationary signatures provide a robust and flexible technique for overcoming the challenge of network rendezvous and coordination in emerging Dynamic Spectrum Access ...
  • Segmentation and inpainting for stereoscopic videos 

    Raimbault, Félix (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2015)
  • Segmentation of textured images on three-dimensional lattices 

    Ranguelova, Elena Boykova (Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2003)
    The development of supervised segmentation algorithms for textured images existing on three-dimensional (3-D) lattices is the central theme of this thesis. The current state of the art in 3-D segmentation has been reviewed, ...