Browsing ISSC 2013 24th IET Irish Signals and Systems Conferences by Issue Date
Now showing items 1-20 of 33
-
On the application of two dimensional chirplets for resilient digital image watermarking
(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 ... -
Cooperatively extending the range of indoor localisation
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)Whilst access to location based information has been mostly possible in the outdoor arena through the use of GPS, the provision of accurate positioning estimations and broad coverage in the indoor environment has proven ... -
Impact of DFT properties on the inherent resolution of compressed sensing reconstructed images
(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 ... -
Towards shifted NMF for improved monaural separation
(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 ... -
Linearity vs. power consumption of CMOS LNAs in LTE systems
(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 ... -
IEEE 802.15.4a UWB-IR ranging with bilateral transmitter power control methodology for multipath effects mitigation
(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 ... -
Modeling user behaviour in response to cyberthreats
(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 ... -
Comparing and contrasting smartphone and non-smartphone usage
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)This paper presents a large-scale network wide analysis of both user behaviour and network dynamics in a live nationwide 2G/3G network. The employed data set tracks over one million subscribers across upwards of ten thousand ... -
Phase noise analysis of Colpitts and Hartley CMOS oscillators
(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 ... -
Design implementation and evaluation of a tablet-based student response system for an engineering classroom
(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 ... -
Budgetary and redundancy optimisation of homogeneous series-parallel systems subject to availability constraints using matlab implemented genetic computing
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)This paper deals with finding optimal structures and redundant safety designs with minimal costs for series-Parallel multi state system (MSS) configurations subject to availability constraints using genetic algorithms as ... -
Formal verification of ‘full chip’ containing ‘shell’ partitions with and without feed-thrus
(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 ... -
Robust digital video watermarking using reversible data hiding and visual cryptography
(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 ... -
Replicating reality: Driver assessment using dual-fidelity simulator
(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 ... -
The quantification of wind turbulence by means of the fourier dimension
(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) ... -
Prototype test insertion co-processor for agile development in multi-threaded embedded environments
(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 ... -
Online estimation of VVoIP quality-of-experience via network emulation
(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 ... -
Experimental evaluation of mobile phone sensors
(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 ... -
A simplified approach to perceptual quality adaptation of multi-dimensional scalable video
(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 ... -
Near-field radiation patterns for an Ultra-Wide-Band antenna
(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 ...
