Developing New Clocks for Australia: Testing the Assumptions of Modern Physics. Clocks lie at the heart of all precise measurement devices; for example, they are the crucial elements in modern navigation and telecommunications systems. This project will develop three new clocks for Australia: a laser clock at the leading edge of technology, a novel and compact clock with commercial potential, and a microwave clock for use in the next generation of satellites. The performance advantage conferre ....Developing New Clocks for Australia: Testing the Assumptions of Modern Physics. Clocks lie at the heart of all precise measurement devices; for example, they are the crucial elements in modern navigation and telecommunications systems. This project will develop three new clocks for Australia: a laser clock at the leading edge of technology, a novel and compact clock with commercial potential, and a microwave clock for use in the next generation of satellites. The performance advantage conferred by our new devices can deliver economic benefits while also giving the possibility for scrutinizing the laws of physics for evidence that there is something beyond our present formulation.Read moreRead less
Semi-contention based multi-user diversity: a new way to increase throughput of wireless communications. Wireless communications, due to its low initial deployment cost, high scalability and flexibility, will play a key role in providing broadband communications to sparsely populated areas of Australia. To this end, the Australian government announced "Connect Australia" aiming for nationwide broadband communication services, in which wireless communications is an important component. This proje ....Semi-contention based multi-user diversity: a new way to increase throughput of wireless communications. Wireless communications, due to its low initial deployment cost, high scalability and flexibility, will play a key role in providing broadband communications to sparsely populated areas of Australia. To this end, the Australian government announced "Connect Australia" aiming for nationwide broadband communication services, in which wireless communications is an important component. This project focuses on improving the throughput of wireless communications, especially for rural areas, through the use of a new technology: semi-contention based multi-user diversity. The outcome of this project will help to connect Australian people and to lift the international profile of Australian engineering science in wireless communications.Read moreRead less
Exploring Synergies between Frontier Microphotonics and Advanced Time and Frequency Technology. Recently scientists have developed the means to manufacture objects that are on the same microscopic scale as light itself. These structures can deliver exquisite control of the properties of the light beams. Our existing research has been aimed at developing some of the world's most precise measurement tools based on clocks and the pure colours generated by lasers. By combining these two technologie ....Exploring Synergies between Frontier Microphotonics and Advanced Time and Frequency Technology. Recently scientists have developed the means to manufacture objects that are on the same microscopic scale as light itself. These structures can deliver exquisite control of the properties of the light beams. Our existing research has been aimed at developing some of the world's most precise measurement tools based on clocks and the pure colours generated by lasers. By combining these two technologies, both of which lie at the extreme limit of precision, we will develop a new generation of technology for fundamental science objectives as well as for industrial needs.Read moreRead less
A Study of Stabilisation and Optimal Control Computation of Impulsive Control Systems. Impulsive systems exhibit the phenomenon of jumps occurring at various time points along their trajectories. They arise from many applications, such as determining appropriate levels of drug administration in cancer and diabetes treatment, optimizing investment strategies in capacity expansion, and sustainable optimal forest management. This project will result in fundamental theory on stability and efficient ....A Study of Stabilisation and Optimal Control Computation of Impulsive Control Systems. Impulsive systems exhibit the phenomenon of jumps occurring at various time points along their trajectories. They arise from many applications, such as determining appropriate levels of drug administration in cancer and diabetes treatment, optimizing investment strategies in capacity expansion, and sustainable optimal forest management. This project will result in fundamental theory on stability and efficient computational algorithms and software packages for stabilizing controls and optimal controls of impulsive control problems. The outcomes will enhance Australia's reputation for leading edge research and facilitate opportunity for international collaboration. It will also provide an excellent opportunity for research training.Read moreRead less
Analysis of Polynomial Phase Signals with Missing Observations. Many non-stationary signals in radar, physics and communications can be modelled as polynomial phase signals. These signals are often incomplete due to missing observations from intermittent sensor failures, outliers, receiver errors, periodic interference and inaccessibility of data. The aim of this project is to develop robust and computationally efficient methods for recovering such signals from small data sets when there is a la ....Analysis of Polynomial Phase Signals with Missing Observations. Many non-stationary signals in radar, physics and communications can be modelled as polynomial phase signals. These signals are often incomplete due to missing observations from intermittent sensor failures, outliers, receiver errors, periodic interference and inaccessibility of data. The aim of this project is to develop robust and computationally efficient methods for recovering such signals from small data sets when there is a large proportion of missing observations. This will contribute to a conceptual advancement in the field of signal processing and will provide new methods for use in applications such as radar, astrophysics, seismology, vibration analysis and communications.Read moreRead less
Visual Solutions for Automated Translation Between Spoken and Signed Languages. We propose to build a robust visual speech recognition system that analyzes images of spoken language and achieves a recognition of the utterances with at least human expert recognition rates. This visual speech recognition system will then be integrated with our existing gesture recognition system to improve performance, just as humans combine visual and audio data for language understanding. The result will be a sy ....Visual Solutions for Automated Translation Between Spoken and Signed Languages. We propose to build a robust visual speech recognition system that analyzes images of spoken language and achieves a recognition of the utterances with at least human expert recognition rates. This visual speech recognition system will then be integrated with our existing gesture recognition system to improve performance, just as humans combine visual and audio data for language understanding. The result will be a system providing translation between English and the Australian sign language Auslan in a practical application domain. Significantly, our work will provide insights into the cognitive models of neural activity linking language and gesture.Read moreRead less