Browsing Electrical, Electronic and Computer Engineering by Title

Browsing Electrical, Electronic and Computer Engineering by Title

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  • A Kalman filter model for signal estimation in the auditory system 
    Hauger, Martin M (University of Pretoria, 2006-06-13)
    Using a Kalman filter that contains a forward-predictive model of a relevant system, to predict the states of that system by means of an analysis-by-synthesis implementation in order to evade significant time delays incurred ...
  • L-band tapered-ridge SIW-to-CPW transion 
    Smith, James Nathan; Stander, Tinus; International Conference on Actual Problems of Electron Devices Engineering (APEDE) (2014 : Saratov, Russia) (Institute of Electrical and Electronics Engineers, 2014)
    A tapered ridge transition between coplanar waveguide and substrate-integrated waveguide is presented. The taper is implemented through staircase metallization across 10 layers of conventional RF substrate with sidewall ...
  • Land cover change detection using autocorrelation analysis on MODIS time-series data : detection of new human settlements in the Gauteng province of South Africa 
    Kleynhans, Waldo; Salmon, Brian Paxton; Olivier, Jan Corne; Van den Bergh, Frans; Wessels, K.J. (Konrad); Grobler, Trienko Lups; Steenkamp, Karen C. (Institute of Electrical and Electronics Engineers, 2012)
    Human settlement expansion is one of the most pervasive forms of land cover change in the Gauteng province of South Africa. A method for detecting new settlement developments in areas that are typically covered by natural ...
  • Land cover separability analysis of MODIS time series data using a combined simple harmonic oscillator and a mean reverting stochastic process 
    Grobler, Trienko Lups; Ackermann, Etienne Rudolph; Olivier, Jan Corne; Van Zyl, A.J. (Gusti); Kleynhans, Waldo (Institute of Electrical and Electronics Engineers, 2012-06)
    It is proposed that the time series extracted from moderate resolution imaging spectroradiometer satellite data be modeled as a simple harmonic oscillator with additive colored noise. The colored noise is modeled with ...
  • Large-scale building energy efficiency retrofit : concept, model and control 
    Wu, Zhou; Wang, Bo; Xia, Xiaohua (Elsevier, 2016-08)
    Building energy efficiency retrofit (BEER) projects are initiated in many nations and regions over the world. Existing studies of BEER focus on modeling and planning based on one building and one year period of retrofitting, ...
  • Latency based device fingerprinting in a low-power industrial wireless sensor network 
    Kruger, Carel Phillip (University of Pretoria, 2021)
    Security is a key challenge for any IIoT network and more so for constrained IWSN deployments. Novel methods are thus required to enhance security, taking into consideration the lossy and low power nature of the IWSN. ...
  • LC-ladder and capacitive shunt-shunt feedback LNA modelling for wideband HBT receivers 
    Weststrate, Marnus (University of Pretoria, 2011)
    Although the majority of wireless receiver subsystems have moved to digital signal processing over the last decade, the low noise amplifier (LNA) remains a crucial analogue subsystem in any design being the dominant subsystem ...
  • Leader-following consensus for upper-triangular multi-agent systems via sampled and delayed output feedback 
    Li, Fengjiao; Shen, Yanjun; Zhang, Daoyuan; Huang, Xiongfeng; Wang, Yan-Wu (Elsevier, 2018-01)
    In this paper, the leader-following consensus problem is investigated for upper-triangular nonlinear MASs (multi-agent systems) via sampled and delayed output feedback. The sampled outputs transmitted through the communication ...
  • Learning data-derived vehicle motion models for use in localisation and mapping 
    Fick, Kobie Wood (University of Pretoria, 2018)
    Various solutions to the Simultaneous Localisation and Mapping (SLAM) problem have been proposed over the last 20 years. In particular, extending the fundamental solution of the SLAM problem has attracted a great deal ...
  • Leveraging the multimodal information from video content for video recommendation 
    Almeida, Adolfo Ricardo Lopes De (University of Pretoria, 2021)
    Since the popularisation of media streaming, a number of video streaming services are continually buying new video content to mine the potential profit. As such, newly added content has to be handled appropriately to be ...
  • Limiting apparent target position in skin-return influenced cross-eye jamming 
    Du Plessis, W.P. (Warren Paul) (Institute of Electrical and Electronics Engineers, 2013)
    It is desirable to limit the apparent target to one side of a retrodirective cross-eye jammer despite the variation caused by platform skin return. The relationship between the jammer parameters and the jammer-to-signal ...
  • Line impedance measurement to improve power systems protection of the Gautrain 25 kV autotransformer traction power supply system 
    Moyo, Ndaedzo M.; Bansal, Ramesh C.; Naidoo, Raj; Sprong, Willem (Institute of Electrical and Electronics Engineers, 2019)
    Traction power systems are susceptible to service affecting electrical faults or disturbances. These may cause interruptions of the power supply to the trains, affecting systems operations and causing major delays. ...
  • Linearity improvement analysis for PAs at mm-wave frequencies 
    Valliarampath, Joe; Sinha, Saurabh (Wiley, 2014-03)
    This article presents an adaptive predistortion (APD) linearization technique to improve the linearity of millimeter-wave power amplifiers (PAs), specifically at 60 GHz. The PA and the APD were designed using the 0.13 ...
  • Linearized differential current sensor in low-voltage CMOS 
    Naude, Neil; Sinha, Saurabh (Emerald, 2017-05)
    PURPOSE : This work aims to improve upon the linearity of integrated CMOS current sensors used in switch mode power supply topologies, using a low-cost and low-voltage (less than 1.2 V) CMOS technology node. Improved sensor ...
  • Link quality analysis of wireless underground sensor networks 
    De Carvalho e Silva, Bruno J. (University of Pretoria, 2014)
    Wireless Sensor Networks have received significant attention due to their capability for distributed sensing at relatively low cost, in applications which range from environmental to industrial monitoring. More recently, ...
  • Listening effort in native and nonnative English-speaking children using low linguistic single-and dual-task paradigms 
    Oosthuizen, Ilze; Picou, Erin M.; Pottas, Lidia; Myburgh, Hermanus Carel; Swanepoel, De Wet (American Speech-Language-Hearing Association, 2020-06)
    PURPOSE : It is not clear if behavioral indices of listening effort are sensitive to changes in signal-to-noise ratio (SNR) for young children (7-12 years old) from multilingual backgrounds. The purpose of this study was ...
  • Load scheduling with cogeneration and real time pricing 
    Erasmus, Dawid J (University of Pretoria, 2006-12-20)
    The increase in energy costs, restructuring of electricity supply industry, quality of supply standards and environmental responsibility, initiated an investigation to utilize available carbon monoxide for cogeneration at ...
  • Localised information fusion techniques for location discovery in wireless sensor networks 
    Abu-Mahfouz, Adnan Mohammed; Hancke, Gerhard P. (Inderscience, 2018)
    Many wireless sensor network (WSN) applications and techniques require sensor location to work correctly. Information fusion in WSNs is crucial for location discovery and many information fusion techniques have been used ...
  • Log-domain iterative sphere decoder with symbol sorting 
    Botha, P.R. (Philippus Rudolph); Maharaj, Bodhaswar Tikanath Jugpershad (South African Institute of Electrical Engineers, 2016-03)
    In this paper the authors propose modified branch and pruning metrics for the sphere decoder to facilitate the use of apriori information in the sphere decoder. The proposed sphere decoder operates completely in the ...
  • Loop-mediated isothermal aplification detection of SARS-CoV-2 and myriad other applications 
    Moore, Keith J. M.; Cahill, Jeremy; Aidelberg, Guy; Aronoff, Rachel; Bektas, Ali; Bezdan, Daniela; Butler, Daniel J.; Chittur, Sridar V.; Codyre, Martin; Federici, Fernan; Tanner, Nathan A.; Tighe, Scott W.; True, Randy; Ware, Sarah B.; Wyllie, Anne L.; Afshin, Evan E.; Bendesky, Andres; Chang, Connie B.; Dela Rosa, Richard II; Elhaik, Eran; Erickson, David; Goldsborough, Andrew S.; Grills, George; Hadasch, Kathrin; Hayden, Andrew; Her, Seong-Young; Karl, Julie A.; Kim, Chang Hee; Kriegel, Alison J.; Kunstman, Thomas; Landau, Zeph; Land, Kevin; Langhorst, Bradley W.; Lindner, Ariel B.; Mayer, Benjamin E.; McLaughlin, Lee A.; McLaughlin, Matthew T.; Molloy, Jenny; Mozsary, Christopher; Nadler, Jerry L.; D’Silva, Melinee; Ng, David; O’Connor, David H.; Ongerth, Jerry E.; Osuolale, Olayinka; Pinharanda, Ana; Plenker, Dennis; Ranjan, Ravi; Rosbash, Michael; Rotem, Assaf; Segarra, Jacob; Schurer, Stephan; Sherrill-Mix, Scott; Solo-Gabriele, Helena; To, Shaina; Vogt, Merly C.; Yu, Albert D.; Mason, Christopher E.; The gLAMP Consortium (Association of Biomolecular Resource Facilities, 2022-09)
    As the second year of the COVID-19 pandemic begins, it remains clear that a massive increase in the ability to test for SARS-CoV-2 infections in a myriad of settings is critical to controlling the pandemic and to preparing ...