Browsing Research Articles (Electrical, Electronic and Computer Engineering) by Title

Browsing Research Articles (Electrical, Electronic and Computer Engineering) by Title

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  • Venter, Petrus Johannes; Du Plessis, Monuko (Optical Society of America, 2014-09)
    Visible light from silicon junctions under avalanche breakdown can be used to create microdisplay systems with integrated light sources. Junctions available in standard CMOS usually breaks down at much larger voltages ...
  • Zhu, Bing; Huo, Wei (Institute of Electrical and Electronics Engineers, 2014-09)
    A 3-D path-following controller is proposed in this brief for a 6-degrees-of-freedom model-scaled autonomous helicopter. The reference path and path-following errors are newly defined using implicit expressions. On the ...
  • Opperman, Tjaart Adriaan Kruger; Sinha, Saurabh (Springer, 2012-08)
    A 4.3 GHz voltage controlled oscillator (VCO) with multiple independently tunable phase outputs is presented. The VCO is realized by coupling two LC oscillators together in order to obtain quadrature signals and is ...
  • Reddy, Reeshen; Sinha, Saurabh (Elsevier, 2015-04)
    This paper presents a six-bit current-steering digital-to-analogue converter (DAC), which optimises the spurious free dynamic range (SFDR) performance of high-speed binary weighted architectures by lowering current switch ...
  • Venter, Petrus Johannes; Du Plessis, Monuko; Bogalecki, Alfons Willi; Goosen, Marius Eugene; Rademeyer, Pieter (Society of Photo-optical Instrumentation Engineers, 2012)
    Microdisplay technologies for near-to-eye applications mostly use a complementary metal-oxide semiconductor (CMOS) processing chip as backplane for pixel addressing, with extensive post-processing on top of the CMOS ...
  • Mayhew-Ridgers, Gordon; Van Jaarsveld, Paul A.; Odendaal, J.W. (Johann Wilhelm); Joubert, Johan (Institute of Electrical and Electronics Engineers, 2014)
    The classic gain-transfer method assumes a uniform plane wave incident over the apertures of the gain-transfer standard (typically a standard-gain horn) as well as the antenna under test. Variations in the incident field ...
  • Prinsloo, Jaco; Malekian, Reza (MDPI Publishing, 2016-06-04)
    Modern infrastructure, such as dense urban areas and underground tunnels, can effectively block all GPS signals, which implies that effective position triangulation will not be achieved. The main problem that is addressed ...
  • Pienaar, Monique; Odendaal, J.W. (Johann Wilhelm); Joubert, Johan; Cilliers, J.E.; Smit, J.C. (American Geophysical Union (AGU), 2016-05)
    Either passive calibration targets are expensive and complex to manufacture or their bistatic RCS levels are significantly lower than the monostatic RCS levels of targets such as spheres, dihedral- and trihedral corner ...
  • Pienaar, Monique; Odendaal, J.W. (Johann Wilhelm); Cilliers, Jacques E.; Kloke, Kevin Hugh; Joubert, Johan (Wiley, 2016-05)
    The radar cross section (RCS) of passive calibration targets is relatively low, which leads to a commensurate increase in the uncertainty of the radar’s calibration. To address this deficiency, an active radar calibration ...
  • Chinnappen-Rimer, Suvendi; Hancke, Gerhard P. (Inderscience, 2011)
    Mobile, unmanned, power and resource-rich devices, called actors, deployed within a Wireless Sensor Network (WSN) application area, enable faster response times to events. Due to cost constraints, only a few actors can ...
  • Yu, Hui; Xia, Xiaohua (Elsevier, 2012-08)
    In this paper, the consensus problem of multi-agent following a leader is studied. An adaptive design method is presented for multi-agent systems with non-identical unknown nonlinear dynamics, and for a leader to be ...
  • Yu, Hui; Xia, Xiaohua (Elsevier, 2017-06)
    In this paper, the leaderless consensus problem of multi-agent systems with jointly connected topologies and nonlinear dynamics is considered, in which the nonlinear dynamics are assumed to be non-identical and unknown. ...
  • Naidoo, Raj; Pillay, Pragasen; Visser, Jaco; Bansal, Ramesh C.; Mbungu, Nsilulu Tresor (Elsevier, 2018-05)
    This paper proposes a novel approach of estimating the symmetrical component into a network. The power grid development and deployment offer several advantages regarding the overall system performance of the electrical ...
  • Shen, Yanjun; Xia, Xiaohua (Wiley, 2014-07)
    In practice, design parameters of a belt conveyor are likely drifting away from their design values by maintenance, readjustment, retrofit, abrasion and circumstance change. For the purpose of energy optimization, these ...
  • Liang, Xiyin; Zhang, Jiangfeng; Xia, Xiaohua (Institute of Electrical and Electronics Engineers, 2008-08)
    In literature it is conjectured that the states of the generalized Lorenz system with an unknown parameter can not be estimated by adaptive observers. In this paper we show that this unknown parameter and the states can ...
  • Luus, Francois Pierre Sarel; Van den Bergh, Frans; Maharaj, Bodhaswar Tikanath Jugpershad (Institute of Electrical and Electronics Engineers, 2014-07)
    Multitemporal land-use analysis is becoming increasingly important for the effective management of earth resources. Despite that, consistent differences in the viewing and illumination geometry in satellite-borne imagery ...
  • Phala, Kgoputjo Simon Elvis; Kumar, Anuj; Hancke, Gerhardus P. (Jr.) (Institute of Electrical and Electronics Engineers, 2016-06)
    An air quality monitoring system (AQMS) based on IEEE/ISO/IEC 21451 standards is presented. In the development of AQMS, we have used the GSM wireless communication module. The developed system is capable of real-time ...
  • Abu-Mahfouz, A.M. (Adnan); Hancke, Gerhard P. (Institute of Electrical and Electronics Engineers, 2017)
    Many wireless sensor networks (WSNs) applications, techniques, and algorithms require the position of the sensor nodes. Sensor nodes mainly rely on localization algorithms to determine their own physical location. ...
  • Pretorius, Linda Luise; Hanekom, J.J. (Johannes Jurgens); Van Wieringen, A.; Wouters, J. (Suid Afrikaanse Akademie vir Wetenskap & Kuns, 2006-12)
    This article describes analytical tests developed to investigate the extent to which Afrikaans- and Englishspeaking South African cochlear implant users recognize phonemes. Vowel stimuli (in a /?VOWEL t/ context) and ...
  • Jacobs, Ockert Botha; Odendaal, J.W. (Johann Wilhelm); Joubert, Johan (Wiley, 2011-06)
    The analysis and design of an omni-directional antenna that functions over a very broad frequency band is presented. Design guidelines for this antenna have been derived using electromagnetic analysis software. ...