ARC Centre for Complex Dynamic Systems & Control. Complex dynamic systems are an inescapable feature of the world we live in. Modelling, analysing and optimizing complex behaviour is crucial for environment, process industry, biomedical, energy distribution, transportation and other applications. The Centre for Complex Dynamic Systems and Control will become an international authority in the analysis, design and optimization of complex dynamic systems, pursuing both outstanding fundamental and c ....ARC Centre for Complex Dynamic Systems & Control. Complex dynamic systems are an inescapable feature of the world we live in. Modelling, analysing and optimizing complex behaviour is crucial for environment, process industry, biomedical, energy distribution, transportation and other applications. The Centre for Complex Dynamic Systems and Control will become an international authority in the analysis, design and optimization of complex dynamic systems, pursuing both outstanding fundamental and cutting edge applied research outcomes. These outcomes will be of specific benefit to partner organizations including minerals, process, metal forming, and automotive industries.Read moreRead less
Fast Signal Processing and Control Algorithms for Complex Hierarchical Systems. Complex dynamical behaviour is inherent to many real-world systems including telecommunications networks, financial markets and biological systems. High performance signal processing and control algorithms for such large-scale, complex systems are computationally very expensive in general. An important class of large-scale Markovian models arising in many applications shows a remarkable hierarchical property, display ....Fast Signal Processing and Control Algorithms for Complex Hierarchical Systems. Complex dynamical behaviour is inherent to many real-world systems including telecommunications networks, financial markets and biological systems. High performance signal processing and control algorithms for such large-scale, complex systems are computationally very expensive in general. An important class of large-scale Markovian models arising in many applications shows a remarkable hierarchical property, displaying strong interactions within certain clusters of states and weak interactions among these clusters. By utilizing this property, the proposed project will design and analyze novel reduced-complexity signal processing and control algorithms with rigorous performance guarantees. In addition, this project will explore possibilities of making these algorithms hierarchical such that they are easy to implement through decentralization.Read moreRead less
Stochastic Sensor Scheduling in Statistical Signal Processing. In several statistical signal processing applications, due to computational or communication constraints, at each time instant one can use only a few out of several possible noisy (stochastic) sensors. The stochastic sensor scheduling problem deals with how to dynamically choose which group of sensors to pick at each time instant. This project involves research in sensor scheduling for widely used stochastic dynamical systems such as ....Stochastic Sensor Scheduling in Statistical Signal Processing. In several statistical signal processing applications, due to computational or communication constraints, at each time instant one can use only a few out of several possible noisy (stochastic) sensors. The stochastic sensor scheduling problem deals with how to dynamically choose which group of sensors to pick at each time instant. This project involves research in sensor scheduling for widely used stochastic dynamical systems such as Hidden Markov Models and Jump Markov Linear Systems. It focuses on the design and analysis of stochastic control algorithms such as dynamic programming and simulation based randomized methods. The research will lead to an integrated theory incorporating stochastic control, statistical signal processing and combinatorial optimization. We will also apply the resulting techniques to tracking maneuvering targets given noisy observations.Read moreRead less
Microfabrication of integrated silicon optical cross-switches interfaced with silica optical waveguides. Project aims to fabricate novel silicon based optical switches in the form of cantilevered mirrors integrated to interface with silica optical waveguides integrated collimation lens. Significantly, it paves the way for low cost integration of optical switches with array waveguides for an all-optical dynamically reconfigurable dense wavelength division multiplexing network used in modern broad ....Microfabrication of integrated silicon optical cross-switches interfaced with silica optical waveguides. Project aims to fabricate novel silicon based optical switches in the form of cantilevered mirrors integrated to interface with silica optical waveguides integrated collimation lens. Significantly, it paves the way for low cost integration of optical switches with array waveguides for an all-optical dynamically reconfigurable dense wavelength division multiplexing network used in modern broadband telecommunication systems. International market demand for such devises is enormous. Expected outcomes include the development of arrays of low loss 2x2 integrated optical waveguide cross-switches prototypes, securing the intellectual property rights and disseminating the work internationally.Read moreRead less
Development of a novel photonic reticulation system for cost efficient delivery of high bandwidth communication services to regional communities. The R&D and commercialisation of the DWDM-lite will have a significant impact on the efficiency of Australia's telecommunications industry with consequent flow-on effects to the productivity and competitiveness of Australian telecommunications industry. The availability of broadband telecommunications services to regional communities at service and ser ....Development of a novel photonic reticulation system for cost efficient delivery of high bandwidth communication services to regional communities. The R&D and commercialisation of the DWDM-lite will have a significant impact on the efficiency of Australia's telecommunications industry with consequent flow-on effects to the productivity and competitiveness of Australian telecommunications industry. The availability of broadband telecommunications services to regional communities at service and services levels to those of metropolitan customers is a recognised national priority. It lies at the core of the Australian Government's recently announced Connect Australia plan directing at regional community benefits in improved availability and affordability of broadband telecommunications services. The product will enhance Australian participation in the global equipment supply industryRead moreRead less
Efficient signal processing using short word-length techniques. It is expected that the research will lead to significant reductions in cost and computational overheads for signal processing systems in general. These cost/speed enhancements have implications for radar, communications, audio, speech, video, aerospace, defence and biomedical engineering. In the last few decades, developments in enhancing the speed of processing signals has been clearly seen to impinge greatly on the lives of all c ....Efficient signal processing using short word-length techniques. It is expected that the research will lead to significant reductions in cost and computational overheads for signal processing systems in general. These cost/speed enhancements have implications for radar, communications, audio, speech, video, aerospace, defence and biomedical engineering. In the last few decades, developments in enhancing the speed of processing signals has been clearly seen to impinge greatly on the lives of all citizens and so positive outcomes from the research can be expected to translate into increased quality of life for the whole country.Read moreRead less
The Interplay of Feedback Control and Digital Communications. This project deals with two research topics in digital communications and control. The first is concerned with feedback communications for control systems, aiming to develop new design methods for network-based automation and control. The second studies new decoding and detection algorithms for digital communications. Applications of the proposed research work include network-based industrial control, wireless communication devices, a ....The Interplay of Feedback Control and Digital Communications. This project deals with two research topics in digital communications and control. The first is concerned with feedback communications for control systems, aiming to develop new design methods for network-based automation and control. The second studies new decoding and detection algorithms for digital communications. Applications of the proposed research work include network-based industrial control, wireless communication devices, and high density digital storage media. The cross-fertilisation of control systems and digital communications will help strengthen Australia's research expertise in the National Research Priority area "Information and Communications Technology" (ICT). Read moreRead less
Analysis and Design of Multi-objective Optimal Multirate Filter Banks. Multirate filter banks are a fundamental subsystem and play a key role in many applications in information technology, such as digital communications and digital audio and video signal processing. Most of the existing design methods of multirate filter banks are based on idealized operation conditions, so often they do not provide practically desirable performance. This project will develop innovative design methods for multi ....Analysis and Design of Multi-objective Optimal Multirate Filter Banks. Multirate filter banks are a fundamental subsystem and play a key role in many applications in information technology, such as digital communications and digital audio and video signal processing. Most of the existing design methods of multirate filter banks are based on idealized operation conditions, so often they do not provide practically desirable performance. This project will develop innovative design methods for multirate filter banks under the worst operational conditions and multiple conflicting design objectives. The results will fill in the gap between the theoretical design and the practical requirements to provide enhanced performance of systems using multirate filter banks.Read moreRead less
High precision material processing using ultrashort laser pulses at MHz repetition rates. The continual miniaturisation of mechanical and electronic components for biomedical, aerospace and industrial products is driving the demand for advanced fabrication techniques. Femtosecond laser micromachining in particular is emerging as a critical manufacturing process for these components and other new and unprecedented applications.
The project will build up strong links between the Photonics Institu ....High precision material processing using ultrashort laser pulses at MHz repetition rates. The continual miniaturisation of mechanical and electronic components for biomedical, aerospace and industrial products is driving the demand for advanced fabrication techniques. Femtosecond laser micromachining in particular is emerging as a critical manufacturing process for these components and other new and unprecedented applications.
The project will build up strong links between the Photonics Institute in Vienna, Austria, which is noted for their achievements in the development of femtosecond light sources, and the CLA, which has an excellent reputation for its expert knowledge in laser material processing. It is therefore believed to be beneficial for research in both countries.
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Preparation of silica-based thin film materials with large optical nonlinearity. There is currently a lack of advanced thin film materials suitable for fabricating integrated electro-optic devices to use in optical telecommunication. Such materials will be produced, and their application will be developed through this project. The physical mechanism of the marvelous optical nonlinearities of the materials will also be investigated. Thus the achievement of this project will bring great advancemen ....Preparation of silica-based thin film materials with large optical nonlinearity. There is currently a lack of advanced thin film materials suitable for fabricating integrated electro-optic devices to use in optical telecommunication. Such materials will be produced, and their application will be developed through this project. The physical mechanism of the marvelous optical nonlinearities of the materials will also be investigated. Thus the achievement of this project will bring great advancement in both scientific knowledge and technologies for Australia, and provide huge opportunities to boost Australian telecommunication industries, which are developing quickly in recent years.Read moreRead less