Now showing items 6-25 of 33

    • Design implementation and evaluation of a tablet-based student response system for an engineering classroom 

      McLoone, S.C.; O'Keeffe, S.; Villing, R. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Student response systems (SRSs) have generated significant debate and discussion in the educational research literature in the past decade. It is well known that they offer several important advantages including encouraging ...
    • Detection and characterization of acoustic signals from a granulation process 

      Gupta, Y.; O'Brien, T.; Ruiyao, Gao. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      This paper presents the development of an acoustic emission monitoring system and its application to the investigation of acoustic emissions from a high-shear granulation. The system utilizes two piezoelectric sensors which ...
    • Error-free authentication watermarking based on prediction-error-expansion reversible technique 

      Rongrong Ni; Cheng, H.D.; Yao Zhao.; Yu Hou. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Watermarking technology is an efficient method to protect multimedia content. In this paper, an error-free authentication watermarking is proposed based on prediction-error-expansion reversible technique. A binary image ...
    • Experimental evaluation of mobile phone sensors 

      Zhizhong Ma.; Yuansong Qiao.; Lee, B.; Fallon, E. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Smart phone has become an important part of people's daily life. Most of current smart phone are equipped with a rich set of built-in sensors. The mobile applications such as geo-location based video annotation and indoor ...
    • Extraction of reliability indicators from large-scale, highly variable timing data of MEMS switches 

      Kosla, C.; Hill, M. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      In this paper we present a method for monitoring and processing large-scale highly variable and nonlinear reliability data for MEMS RF Switches. The data is generated by measuring the switch actuation dynamics and a ...
    • Formal verification of ‘full chip’ containing ‘shell’ partitions with and without feed-thrus 

      Iqbal, R. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      The `Full Chip' module of an ASIC is made up of various partitions and similar to individual partitions, it also goes through various stages of the physical design. The initial design-planning works on the existing pins ...
    • Ghostbusters: A parts-based NMF algorithm 

      de Frein, R. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      An exact nonnegative matrix decomposition algorithm is proposed. This is achieved by 1) Taking a nonlinear approximation of a sparse real-valued dataset at a given tolerance-to-error constraint, c; Choosing an arbitrary ...
    • IEEE 802.15.4a UWB-IR ranging with bilateral transmitter power control methodology for multipath effects mitigation 

      Tingcong, Ye.; Walsh, M.; O'Flynn, B. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      IEEE 802.15.4a Ultra Wideband Impulse Radio (UWB-IR) measures the distance using the time-of-arrival (TOA) of the leading path signal. Multipath propagation in indoor environments can adversely affect the signal to noise ...
    • Impact of DFT properties on the inherent resolution of compressed sensing reconstructed images 

      Smith, M.; Woehr, J.; Marasco, E.; MacDonald, M.E. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Compressed sensing (CS) algorithms exploit sparseness properties to reconstruct high spatial resolution magnetic resonance (MR) images from k-space data acquisitions significantly under sampled to reduce imaging times. CS ...
    • Improved stereo instrumental track recovery using median nearest-neighbour inpainting 

      Jaiswal, R.; Fitzgerald, D. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Several algorithms have been proposed for vocal removal which operate by finding the position of the vocals in the stereo field and removing the time-frequency bins associated with that position. However, in many cases, ...
    • Linearity vs. power consumption of CMOS LNAs in LTE systems 

      Szczepkowski, G.; Farrell, R. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      This paper presents a study of linearity in wideband CMOS low noise amplifiers (LNA) and its relationship to power consumption in context of Long Term Evolution (LTE) system. Using proposed figure of merit to compare 35 ...
    • Modeling user behaviour in response to cyberthreats 

      Caldwell, A.; McGarvey, J. (IET CONFERENCE PUBLICATIONS, 2013-06)
      Considerable challenges exist for the average computer user, organizations and indeed governmental agencies with the advent and evolution of threats directed against the computer user today. Combating cyberthreats has not ...
    • Motion-onset visual evoked potentials for gaming: A pilot study 

      Marshall, D.; Coyle, D.; Wilson, S. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      This paper details a pilot study for a motion onset Visual Evoked Potential (mVEP) based Brain Computer Interface (BCI) controlled game. mVEP is a type of VEP that uses visual responses from the dorsal pathway of the visual ...
    • Near-field radiation patterns for an Ultra-Wide-Band antenna 

      Blackledge, J.; Babajanov, B. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      We present a three-dimensional time dependent model for simulating the electromagnetic radiation field patterns generated by Ultra-Wide-Band (UWB) antennas. UWB antennas are pulsed mode radiators used to communicate ...
    • On the application of two dimensional chirplets for resilient digital image watermarking 

      Blackledge, J.; Iakovenko, O. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Chirplets (swept-frequency harmonic signals) find applications in several areas, including real and synthetic aperture radar, (Fresnel) optics and image processing. The robustness of chirplets to extreme (additive) noise ...
    • Online estimation of VVoIP quality-of-experience via network emulation 

      Adel, M.; Jennings, B.; Malone, D.; Dunne, J.; O'Sullivan, P. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      We describe a testing framework that can provide online estimates of audio and video call quality on network paths, without requiring either end-user involvement or prior availability of audio/video sequences or network ...
    • Optimizing area power consumption in LTE type cells 

      Keenan, T.; Villing, R. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      As wireless networks evolve to deal with increasing traffic demand and an increasing number of users, energy efficiency is becoming increasingly important. Area power consumption, defined as the ratio of total radio access ...
    • Phase noise analysis of Colpitts and Hartley CMOS oscillators 

      Voicu, M.; Pepe, D.; Zito, D. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      This paper reports comparative analyses of the phase noise predictions through Cadence simulations for two LC oscillator topologies: Colpitts and Hartley oscillators. The oscillators have been designed and phase noise ...
    • Prototype test insertion co-processor for agile development in multi-threaded embedded environments 

      Dongcheng, Deng.; Smith, M.; Miller, J. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Agile methodologies have been shown useful in constructing Enterprise applications with a reduced level of defects in the released product. Movement of Agile processes into the embedded world is hindered by the lack of ...
    • The quantification of wind turbulence by means of the fourier dimension 

      Woolmington, T.; Sunderland, K.; Blackledge, J.; Conlon, M. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Signal Processing within the frequency domain has long been associated with electrical engineering as a means to quantify the characteristics of voltage/current waveforms. Historically, wind speed data (speed/direction) ...