Electrical and Electronic Engineering - Research Publications

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Now showing 1 - 10 of 1223
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    Computerised Cardiotocography Analysis for the Automated Detection of Fetal Compromise during Labour: A Review
    Mendis, L ; Palaniswami, M ; Brownfoot, F ; Keenan, E (MDPI, 2023-09)
    The measurement and analysis of fetal heart rate (FHR) and uterine contraction (UC) patterns, known as cardiotocography (CTG), is a key technology for detecting fetal compromise during labour. This technology is commonly used by clinicians to make decisions on the mode of delivery to minimise adverse outcomes. A range of computerised CTG analysis techniques have been proposed to overcome the limitations of manual clinician interpretation. While these automated techniques can potentially improve patient outcomes, their adoption into clinical practice remains limited. This review provides an overview of current FHR and UC monitoring technologies, public and private CTG datasets, pre-processing steps, and classification algorithms used in automated approaches for fetal compromise detection. It aims to highlight challenges inhibiting the translation of automated CTG analysis methods from research to clinical application and provide recommendations to overcome them.
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    Incentivizing Local Controllability in Optimal Trajectory Planning
    Skoraczynski, AZ ; Manzie, C ; Dower, PM (IEEE, 2023-01-01)
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    Min-max and stat game representations for nonlinear optimal control problems
    Dower, PM ; McEneaney, WM ; Zheng, Y (IEEE, 2023-01-01)
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    Multicolor detour phase holograms based on an Al plasmonic color filter.
    Khaleghi, SSM ; Wen, D ; Cadusch, J ; Crozier, KB (Optica Publishing Group, 2023-01-16)
    The remarkable advances in nanofabrication that have occurred over the last decade present opportunities for the realization of new types of holograms. In this work, for the first time to the best of our knowledge, a method for phase multicolor holograms based on nanohole arrays is described. The nanoholes are in an aluminum film that is interposed between the glass substrate and a silicon dioxide layer. The nanoholes serve as color filters for blue, green, and red wavelengths and provide the necessary phase distribution via the detour phase method. Our nanohole arrays are optimized to maximize the transmission efficiency of the red, green, and blue channels and to minimize the cross-talk between them. We design two multicolor holograms based on these filters and simulate their performance. The results show good fidelity to the desired holographic images. The proposed structure has the advantages of being very compact, of requiring only a simple fabrication method with one lithography step, and of employing materials (aluminum and silicon dioxide) that are compatible with standard CMOS technology.
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    Chemical Reactions-Based Detection Mechanism for Molecular Communications
    Cao, TN ; Jamali, V ; Wicke, W ; Zlatanov, N ; Yeoh, PL ; Evans, J ; Schober, R (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2023-03)
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    Safety-Based Speed Control of a Wheelchair Using Robust Adaptive Model Predictive Control.
    Yuan, M ; Wang, Y ; Li, L ; Chai, T ; Ang, WT (Institute of Electrical and Electronics Engineers (IEEE), 2023-09-15)
    Electric-powered wheelchairs play a vital role in ensuring accessibility for individuals with mobility impairments. The design of controllers for tracking tasks must prioritize the safety of wheelchair operation across various scenarios and for a diverse range of users. In this study, we propose a safety-oriented speed tracking control algorithm for wheelchair systems that accounts for external disturbances and uncertain parameters at the dynamic level. We employ a set-membership approach to estimate uncertain parameters online in deterministic sets. Additionally, we present a model predictive control scheme with real-time adaptation of the system model and controller parameters to ensure safety-related constraint satisfaction during the tracking process. This proposed controller effectively guides the wheelchair speed toward the desired reference while maintaining safety constraints. In cases where the reference is inadmissible and violates constraints, the controller can navigate the system to the vicinity of the nearest admissible reference. The efficiency of the proposed control scheme is demonstrated through high-fidelity speed tracking results from two tasks involving both admissible and inadmissible references.
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    The Cost of Noncoherence: Avoiding Channel Estimation Through Differential Encoding in Phase Quantized Systems
    Gayan, S ; Inaltekin, H ; Senanayake, R ; Evans, J (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2023)
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    Robust Wireless Network Anomaly Detection with Collaborative Adversarial Autoencoders
    Katzef, M ; Cullen, AC ; Alpcan, T ; Leckie, C (IEEE, 2023-05-28)
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    Hardware-Limited Non-Uniform Task-Based Quantizers
    Bernardo, NI ; Zhu, J ; Eldar, YC ; Evans, J (IEEE, 2023-06-04)
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    Differential MPSK with n-Bit Phase Quantization
    Gayan, S ; Inaltekin, H ; Senanayake, R ; Evans, J (IEEE, 2023-01-01)