New Technologies for Second Generation Search and Rescue. This project aims to improve the Cospas-Sarsat search and rescue system to ensure faster, more reliable, more accurate, and more cost-effective search and rescue operations, ultimately saving lives. The satellite-based Cospas-Sarsat system has assisted with the emergency rescue of more than 35 000 lives worldwide since its introduction in 1982. A second generation of this system is currently under development, promising to significantly i ....New Technologies for Second Generation Search and Rescue. This project aims to improve the Cospas-Sarsat search and rescue system to ensure faster, more reliable, more accurate, and more cost-effective search and rescue operations, ultimately saving lives. The satellite-based Cospas-Sarsat system has assisted with the emergency rescue of more than 35 000 lives worldwide since its introduction in 1982. A second generation of this system is currently under development, promising to significantly improve detection rate and localisation accuracy. However, in an emergency, the system’s performance is often compromised due to interference and atmospheric effects, leading to false detections that waste valuable resources. This project aims to develop novel techniques to improve this performance.Read moreRead less
Airborne passive radiometer for high resolution soil moisture monitoring. The project proposes to create a novel technology to measure soil moisture. Accurate knowledge of soil moisture profiles at high resolution is important for sustainable land and water management including efficient irrigation scheduling and cropping practices. A passive multi-band soil moisture-measuring radiometer at L-, Ku- and Ka-bands is proposed. The radiometer comprises a three-band shared aperture antenna array, a ....Airborne passive radiometer for high resolution soil moisture monitoring. The project proposes to create a novel technology to measure soil moisture. Accurate knowledge of soil moisture profiles at high resolution is important for sustainable land and water management including efficient irrigation scheduling and cropping practices. A passive multi-band soil moisture-measuring radiometer at L-, Ku- and Ka-bands is proposed. The radiometer comprises a three-band shared aperture antenna array, a receiving electronics, a digital controller and a data logger. The array antenna comprises dual polarised stacked patch elements. Beamforming networks form agile beams to scan the ground. Sensitive radiometer receivers apply brightness temperature downscaling for high resolution. The high-resolution passive radiometer would revolutionise airborne soil moisture monitoring by removing the mechanically steerable bulky and heavy scanheads.Read moreRead less
Markov Field Theory applied to Sensor Networks Analysis and Design. Ad hoc and sensor networks have a wide range of applications in defence, emergency services and agriculture because they do not require telecommunications infrastructure such as base stations or access points, hence are relatively easy to deploy in harsh environments. This project aims at improving the theoretical understanding of sensor and ad hoc networks, which enable improvements in performance in such networks. Australian d ....Markov Field Theory applied to Sensor Networks Analysis and Design. Ad hoc and sensor networks have a wide range of applications in defence, emergency services and agriculture because they do not require telecommunications infrastructure such as base stations or access points, hence are relatively easy to deploy in harsh environments. This project aims at improving the theoretical understanding of sensor and ad hoc networks, which enable improvements in performance in such networks. Australian defence industry and emergency services will benefit from this research by gaining access to improved ad hoc communications networks. The agricultural sector will also benefit from the improved sensor networks in applications such as monitoring soil conditions, stock and crop levels. Read moreRead less
Dynamic phased array antennas for terahertz detection and ranging. The project aims to create reciprocal electrically-tuneable phased array antennas for terahertz waves. The antennas will comprise varactor diodes, analogue phase shifters, and dielectric resonator arrays to rapidly transmit and receive beams with high directivity and performance. The intended outcome is an integrated platform for short-range terahertz detection and ranging. This platform could be used in personal radar and drone- ....Dynamic phased array antennas for terahertz detection and ranging. The project aims to create reciprocal electrically-tuneable phased array antennas for terahertz waves. The antennas will comprise varactor diodes, analogue phase shifters, and dielectric resonator arrays to rapidly transmit and receive beams with high directivity and performance. The intended outcome is an integrated platform for short-range terahertz detection and ranging. This platform could be used in personal radar and drone-based radar, and high-contrast standoff detection. The project could benefit public security and welfare.Read moreRead less
Downlinks for Future Earth Observation Satellites: Breaking the Bottlenecks. Future earth-observation satellites require gigabit transmission rates in higher frequency bands. Limitations in the radio frequency spectrum call for spectrally-efficient modulation schemes, which make gigabit data rates particularly challenging. This project aims to design a next-generation transmission scheme for future Ka-Band gigabit satellite downlinks, including novel approaches for dealing with channel effects s ....Downlinks for Future Earth Observation Satellites: Breaking the Bottlenecks. Future earth-observation satellites require gigabit transmission rates in higher frequency bands. Limitations in the radio frequency spectrum call for spectrally-efficient modulation schemes, which make gigabit data rates particularly challenging. This project aims to design a next-generation transmission scheme for future Ka-Band gigabit satellite downlinks, including novel approaches for dealing with channel effects such as group delay, ripple and non-linear satellite power amplifiers. The design intends to include high-speed signal processing and coding architectures, plus real-time signal synthesis and acquisition to allow realistic performance testing and optimisation with satellite hardware from Thales Alenia Space.Read moreRead less
Interferometric Distributed Feedback Fibre Laser Sensors. This project will solve important problems in realising next generation underwater optical fibre sensor systems for defence and marine exploration. OFTC's expertise in specialty optical fibre and devices will be combined with Thales' expertise in underwater sensor systems to give Australia a global lead. The benefits are commercial, national security and research standing. Domestic manufacture of a major optical system will assist maturat ....Interferometric Distributed Feedback Fibre Laser Sensors. This project will solve important problems in realising next generation underwater optical fibre sensor systems for defence and marine exploration. OFTC's expertise in specialty optical fibre and devices will be combined with Thales' expertise in underwater sensor systems to give Australia a global lead. The benefits are commercial, national security and research standing. Domestic manufacture of a major optical system will assist maturation of the sector which is dominated by component companies. This system for underwater surveillance is obviously important to a country with a large coastline to defend. This project will build Australia's global reputation renowned for research excellence in fibre and fibre devices.Read moreRead less
New multiplexed optical read-out technologies for micromachined cantilever sensor arrays. Passive sensing of chemical and biological agents is an essential capability in fields as diverse as national security, agriculture, mining and medicine. In many cases, generic sensing (e.g. are there pesticides present) as well as specific sensing (which pesticide) are both important. While sensors based on micro-electromechanical systems (MEMS) have shown extremely high performance at low cost, they have ....New multiplexed optical read-out technologies for micromachined cantilever sensor arrays. Passive sensing of chemical and biological agents is an essential capability in fields as diverse as national security, agriculture, mining and medicine. In many cases, generic sensing (e.g. are there pesticides present) as well as specific sensing (which pesticide) are both important. While sensors based on micro-electromechanical systems (MEMS) have shown extremely high performance at low cost, they have been limited to detection of a specific substance. Success in this project will make low cost generic MEMS-based sensors a reality, allowing, for the first time, wide-spread use of sensitive sensing systems in applications such as farming, container transport security, general medical practice and national security.Read moreRead less
Optical coherence elastography - High-resolution medical imaging of tissue mechanical properties. This project brings together an international, multi-disciplinary team to develop innovative, high-resolution techniques to identify diseased tissue. Success will result in a new medical imaging technique allowing clinicians to quantify the mechanical properties of tissue, effectively creating a high-resolution image of what the tissue 'feels' like. This may help them to more accurately identify can ....Optical coherence elastography - High-resolution medical imaging of tissue mechanical properties. This project brings together an international, multi-disciplinary team to develop innovative, high-resolution techniques to identify diseased tissue. Success will result in a new medical imaging technique allowing clinicians to quantify the mechanical properties of tissue, effectively creating a high-resolution image of what the tissue 'feels' like. This may help them to more accurately identify cancerous tissue during surgery and reduce rates of recurrence. It could aid in tissue engineering and regeneration and will provide a new database of tissue mechanical properties. The project will position Australia as a leader in this newly developing medical imaging technology, with significant potential for commercialisation.Read moreRead less
Biomedical Applications of Self-Mixing Sensors based on Vertical-Cavity Surface-Emitting Laser Arrays. The Vertical-Cavity Surface-Emitting Laser (VCSEL) is a new optical device of choice for high speed optical data networks. We propose that this communications technology can be used as a platform to develop a completely new family of sensors ideally suited to medical monitoring. Specifically, we will develop VCSEL based technology for measurement of heart activity and sensing of blood flow in ....Biomedical Applications of Self-Mixing Sensors based on Vertical-Cavity Surface-Emitting Laser Arrays. The Vertical-Cavity Surface-Emitting Laser (VCSEL) is a new optical device of choice for high speed optical data networks. We propose that this communications technology can be used as a platform to develop a completely new family of sensors ideally suited to medical monitoring. Specifically, we will develop VCSEL based technology for measurement of heart activity and sensing of blood flow in skin and tissues. This will provide novel sensors for heart monitoring and imaging, and management of skin disorders (burns and cancer).Read moreRead less
Advanced Laser, Sensor and Diagnostic Technologies Using New Generation Micro- and Nano- Structured Fibres and Gratings. The project aims to provide the next generation of laser and sensor technologies, benefiting not only advanced instrument industries but also others involved with materials processing, sensing diagnostics, biomedicine and defence. The search for a universal model of light interactions with all photosensitive materials, coupled with a demonstration of nanotechnology within a fi ....Advanced Laser, Sensor and Diagnostic Technologies Using New Generation Micro- and Nano- Structured Fibres and Gratings. The project aims to provide the next generation of laser and sensor technologies, benefiting not only advanced instrument industries but also others involved with materials processing, sensing diagnostics, biomedicine and defence. The search for a universal model of light interactions with all photosensitive materials, coupled with a demonstration of nanotechnology within a fibre, will lead to new gratings and fibres that underpin these technologies as well as open up new techniques and processes such as practical radiation hardening of optical waveguides.Read moreRead less