Browsing ISSC 2013 24th IET Irish Signals and Systems Conferences by Title

Now showing items 11-30 of 33

    • 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) ...

    • Reliable system design with a high degree of diagnostic procedures for embedded systems 

      Schwarz, M.H.; Borcsok, J. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Maintenance starts with reliable diagnostics. Programming Logic Controllers (PLCs) are often equipped with a high degree of diagnostic procedures in order to ensure that the processing unit is functioning correctly. It is ...

    • Replicating reality: Driver assessment using dual-fidelity simulator 

      Kaneswaran, D.; Brogan, M.; Mulcahy, M.; Commins, S.; Deegan, C.; Markham, C. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      This paper presents a driving simulator constructed for the purposes of allowing a direct comparison between two levels of fidelity in the driver interaction stream. The driving simulator itself is described, followed by ...

    • Robust digital video watermarking using reversible data hiding and visual cryptography 

      Kumar, M.; Hensman, A. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Watermarking is a major image processing application used to authenticate user documents by embedding and hiding some authenticated piece of information behind an image, audio or the video file. For example, copyright ...

    • A simplified approach to perceptual quality adaptation of multi-dimensional scalable video 

      Maddodi, G.; Lee, B.; Yuansong, Qiao. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      Content Aware Networking (CAN) can enhance the distribution of media through awareness in the network of the content it is carrying. In this way functions such as content adaptation, content routing and resource allocation ...

    • Towards shifted NMF for improved monaural separation 

      Jaiswal, R.; Fitzgerald, D.; Coyle, E.; Rickard, S. (Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
      The ability of Non-negative Matrix Factorisation (NMF) to decompose magnitude spectrogram into meaningful entities has found use in many audio applications. NMF can be used to factorise audio spectrogram of a music signal ...