Now showing items 21-40 of 1920

    • An s-domain model of an HVdc converter 

      Todd, S.; Wood, A.R.; Bodger, P.S. (University of Canterbury. Electrical and Computer Engineering, 1997)
      This paper describes a technique to model an HVdc converter installation in the s-domain. A system equivalent is developed, utilising a frequency domain model, allowing the closed loop frequency response to be expressed. ...
    • An Immersion Model for Software Engineering Projects 

      Churcher, N.; Cockburn, A. (ACM PressUniversity of Canterbury. Computer Science and Software Engineering, 1997)
      Software development projects are an essential component of software engineering courses. They provide the opportunity for students to apply theoretical material and to gain valuable experience in an environment typical ...
    • Nonlinear-dispersive GaAs FET drain-current model for harmonic balance simulation 

      Eccleston, K.W. (University of Canterbury. Electrical and Computer Engineering, 1997)
      Popular GaAs FET large-signal drain conduction current models depend only on instantaneous terminal voltages, and ignore important phenomena that result in low frequency dispersion. To be valid at microwave frequencies, ...
    • Visualisation Techniques for Collaborative GIS Browsers 

      Churcher, N.I.; Prachuabmoh, P.; Churcher, C.D. (University of Canterbury. Computer Science and Software Engineering, 1997)
      Visual information overload is a serious problem for users of geographical information systems (GIS), or other applications with complex displays, where the requirements of access to both local detail and wider context ...
    • A Contour Integration Method for the Computation of Zernike Moments of a Binary Image 

      Mukundan, R. (University of Canterbury. Computer Science and Software Engineering., 1997)
      Zernike moments are widely used in several pattern recognition applications, as invariant descriptors of the image shape. Zernike moments have proved to be superior than other moment functions in terms of their feature ...
    • An adaptive battery monitoring system for an electrical vehicle 

      Sinclair, P.; Duke, R.; Round, S. (University of Canterbury. Electrical and Computer Engineering., 1998)
      In electric vehicles it is important to know the state of charge of the batteries in order to prevent vehicle strandings and to ensure that the full range of the vehicle is exploited. It is also useful to know state of ...
    • Performance of large-diameter piles subjected to lateral spreading of liquefied deposits 

      Ishihara, K.; Cubrinovski, M. (University of Canterbury. Civil and Natural Resources Engineering., 1998)
    • The transient and steady state performance of a shunt active filter using measured site data 

      Round, S.; Laird, H.; Duke, R.; Gardiner, A. (University of Canterbury. Electrical and Computer Engineering., 1998)
      This paper presents the analysis of real power system events recorded at a light industrial site to determine the effect of a shunt active filter on power quality. The shunt active filter is shown to improve power quality ...
    • Geographical information system & remote sensing in bicycle planning 

      Yamashita, Y.; Dantas, A.; Taco, P.W.G.; Yamamoto, K. (University of Canterbury. Civil Engineering., 1998)
      In this paper a new methodology is proposed based on application of GIS and RS for bicycle mode planning. We intend to explore GIS and RS introducing significant variables such as land use patterns, topography, real distances ...
    • Power quality observations at a light industrial site 

      Laird, H.; Round, S.; Duke, R.; Gardiner, A. (University of Canterbury. Electrical and Computer Engineering., 1998)
      This paper deals with observations of events that occur in the power system and could effect power quality at a winery. Power system incidents recorded at the site are presented. The impact of the equipment, which ...
    • Trip Model with the Application of Remote Sensing and the Geographic Information Systems 

      Taco, P.W.G.; Yamashita, Y.; Dantas, A.; Souza, N.M. (University of Canterbury. Civil Engineering., 1998)
      The main objective of the present research is to develop a methodology for the generation of trips using Geographic Information Systems and Remote Sensoring. According to the new developments in this technology, it is ...
    • Optimal Parameter Updating for Optical Diffusion Imaging 

      Ye, J.C.; Webb, K.J.; Millane, R.P.; Downar, T.J. (University of Canterbury. Electrical and Computer Engineering, 1998)
      Because optical diffusion imaging is a highly nonlinear inverse problem, iterative inversion algorithms based on the Born approximation have usually been employed as reconstruction technique, but convergence is slow, ...
    • Analysis of traffic distribution in cellular networks 

      Tunnicliffe, G.W.; Murch, A.R.; Sathyendran, A.; Smith, P. (University of Canterbury. Electrical and Computer Engineering., 1998)
      Accurate air interface traffic forecasting and dimensioning is of importance in any cellular network for achieving cost and quality requirements. Previous studies of traffic modeling in cellular networks have tended to ...
    • Spatial analysis of multi-channel EEG recordings through a fuzzy-rule based system in the detection of epiletiform events. 

      James, C.J.; Jones, R.D.; Bones, P.J.; Carroll, G.J. (University of Canterbury. Electrical and Computer Engineering, 1998)
      A system has been developed which utilises fuzzy logic to perform spatial analysis of the multichannel EEG recording and forms the final stage of a multi-stage system to detect the presence of epileptiform events (EVs) ...
    • An improved three-level shunt active filter 

      Round, S.; Laird, H.; Duke, R.; Tuck, C.J. (University of Canterbury. Electrical and Computer Engineering., 1998)
      A shunt active filter is capable of removing harmonic currents from the supply of commercial and industrial sites. This paper presents a novel method for generating the compensating current signal for an active filter ...
    • Bayesian estimation in an image restoration problem in x-ray fiber diffraction 

      Baskaran, S.; Millane, R.P. (University of Canterbury. Electrical and Computer Engineering, 1998)
      The restoration of an incomplete image from a known part and experimental data in the form of the Fourier amplitude squared sums is formulated as a Bayesian estimation problem. This problem is motivated by the structure ...
    • Soil-pile interaction in liquefied deposits undergoing lateral spreading. 

      Ishihara, K.; Cubrinovski, M. (University of Canterbury. Civil and Natural Resources Engineering., 1998)
      For the design of foundation piles subjected to lateral spreading of the ground, it is necessary to specify the lateral force acting on the pile body from the surrounding soil deposit which is moving as a result of ...
    • A theoretical study of the performance improvement in GSM networks due to slow frequency hopping 

      Sathyendran, A.; Smith, P. (University of Canterbury. Electrical and Computer Engineering., 1998)
      This paper presents a theoretical method to study the performance improvement in GSM networks due to slow frequency hopping when a limited number of hopping channels are available. By comparing the performance improvement ...
    • Enchancement of deep epileptiform activity in the EEG by 3-D adaptive spatial filtering: simulations and real data 

      Ward, D-M.; Jones, R.D.; Bones, P.J.; Carroll, G.J. (University of Canterbury. Electrical and Computer Engineering, 1998)
      An adaptive ‘beamformer’ spatial filter has been investigated for the enhancement of signals from deep sources in the brain suspected of being epileptiform discharges (EDs). A forward 3-D inhomogeneous spherical model that ...
    • An improved prior for image reconstruction in x-ray fiber diffraction 

      Baskaran, S.; Millane, R.P. (IEEE & Focus Interactive TechnologyUniversity of Canterbury. Electrical and Computer Engineering, 1998)
      The structure completion problem in fiber diffraction is addressed from a Bayesian perspective. The experimental data are sums of the squares of the amplitudes of particular sets of Fourier coefficients of the electron ...