Localization of a wireless transponder in a vehicular environment. This project aims to accurately localise passenger wireless devices, in particular the key fob, to improve theft security, passenger safety and user functionality. The objective of the project is to develop a communications band localisation system in a vehicular environment with 10-centimetre accuracy, both inside the vehicle cabin and near to the exterior of the vehicle. Accurate localisation of passenger wireless devices poses ....Localization of a wireless transponder in a vehicular environment. This project aims to accurately localise passenger wireless devices, in particular the key fob, to improve theft security, passenger safety and user functionality. The objective of the project is to develop a communications band localisation system in a vehicular environment with 10-centimetre accuracy, both inside the vehicle cabin and near to the exterior of the vehicle. Accurate localisation of passenger wireless devices poses a challenging research problem because of the severe multipath environment. An innovative solution based on time-difference-of-arrival methodologies, data fusion, sophisticated recursive filtering techniques and illumination scheduling will be investigated. The outcome is potentially applicable to other localisation scenarios degraded by multipath.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100413
Funder
Australian Research Council
Funding Amount
$384,000.00
Summary
Hybrid nanowire-nanoantenna infrared photodetectors. This project aims to demonstrate room temperature hybrid nanowire-nanoantenna infrared photodetectors by integrating plasmonic nanoantennas on semiconductor nanowire arrays. It is expected that such novel device architectures will not only bring enhanced performance in responsivity, detectivity, and photoresponse bandwidth, but also additional functionalities such as selective wavelength and tunable polarisation, which may significantly outper ....Hybrid nanowire-nanoantenna infrared photodetectors. This project aims to demonstrate room temperature hybrid nanowire-nanoantenna infrared photodetectors by integrating plasmonic nanoantennas on semiconductor nanowire arrays. It is expected that such novel device architectures will not only bring enhanced performance in responsivity, detectivity, and photoresponse bandwidth, but also additional functionalities such as selective wavelength and tunable polarisation, which may significantly outperform current infrared technology. The outcomes will provide a new device platform for next-generation, large-scale, reduced-cost, high-performance imaging systems in self-driving navigation, object identification, spectroscopy, and other high-end defence and civilian applications.Read moreRead less
New multi-function wideband microwave and radio frequency signal conditioning based on photonic approaches. The demand for more bandwidth, more functionality and higher sensitivity creates unprecedented challenges for optimally conditioning wideband signals. The project leverages breakthroughs in photonics to develop new programmable microwave processors, with benefits to Australia in radar/antenna systems for defence and broadband wireless networks.
On-chip radio frequency photonics for advanced signal processing. This project proposes new integrated photonic modules to tackle challenges in on-chip photonic processing of wideband radio frequency signals. It will develop enhanced electromagnetically induced transparency for RF frequency filtering, compact all-in-one phase shifter for adaptive beamforming and programmable signal processing, and distributed and cascaded signal processing functions in photonic links. The outcomes are new high-p ....On-chip radio frequency photonics for advanced signal processing. This project proposes new integrated photonic modules to tackle challenges in on-chip photonic processing of wideband radio frequency signals. It will develop enhanced electromagnetically induced transparency for RF frequency filtering, compact all-in-one phase shifter for adaptive beamforming and programmable signal processing, and distributed and cascaded signal processing functions in photonic links. The outcomes are new high-performance integrated microwave photonic signal processors, which will enhance the generation, processing, and distribution of microwave and millimetre-wave signals in radio astronomy, wireless and satellite communications, and produce significant improvements in radar/antenna systems.Read moreRead less
Robust signal processing theory for synthesis and analysis of spatial wavefields. This project will develop breakthrough signal processing techniques applied to wireless communication, defence and surveillance, entertainment systems, and acoustic imaging. The outcomes will produce new products. The project will also provide high quality research training for gifted postgraduate students and postdoctoral researchers.
A Segmented Interior Permanent Magnet Synchronous Motor for Wide Field Weakening Range and its Sensorless Control using Improved Flux Estimators. Australia has the world's second largest reserve (after China) of high energy-density permanent magnet (neodymium-iron-boron) material for the IPM motor. The present limitation of the machine to be driven sensorless over a wide speed range with field weakening is believed to be holding back its widespread use in applications other than servo-type which ....A Segmented Interior Permanent Magnet Synchronous Motor for Wide Field Weakening Range and its Sensorless Control using Improved Flux Estimators. Australia has the world's second largest reserve (after China) of high energy-density permanent magnet (neodymium-iron-boron) material for the IPM motor. The present limitation of the machine to be driven sensorless over a wide speed range with field weakening is believed to be holding back its widespread use in applications other than servo-type which requires high-resolution mechanical sensors. Extension of the motor speed range by a combination of magnetic system design (for large field weakening range), and sensorless position and flux estimation with sufficient accuracy for fast dynamic control should lead to large scale adoption of this motor, and hence to significant improvement in energy efficiency and market share for Australia.Read moreRead less
Improvements of Direct Torque Controllers for the Interior Permanent Magnet Synchronous Motor. The Direct Torque Control (DTC) strategy has recently been applied successfully to the interior permanent magnet (IPM) motor which offers the highest torque/volume and efficiency of all known machines. Exploitation of the recently developed Neodynium-Iron-Boron material, of which Australia is the world's second largest producer, in the IPM motor and of new sensorless control strategies such as the DTC ....Improvements of Direct Torque Controllers for the Interior Permanent Magnet Synchronous Motor. The Direct Torque Control (DTC) strategy has recently been applied successfully to the interior permanent magnet (IPM) motor which offers the highest torque/volume and efficiency of all known machines. Exploitation of the recently developed Neodynium-Iron-Boron material, of which Australia is the world's second largest producer, in the IPM motor and of new sensorless control strategies such as the DTC controller, promises to open vast application potentials, such as in the upcoming hybrid and totally electric automobiles, for these motors. The new DTC controller developed at UNSW shows high promise for delivering a high-performance, sensorless IPM motor drive. This project aims to investigate, and overcome, the remaining problems of this technique.Read moreRead less
Advanced fault tolerant drives for safety critical applications. The key aim of this project is to develop an electrical drive system with enhanced tolerance to system faults. The research is significant as it aims to satisfy the demands of emerging high-reliability applications for electric drive systems utilising a patented concentrated-wound permanent magnet machine. Applications for the research include the automotive, aerospace and resource sectors which are global growth sectors. A new hig ....Advanced fault tolerant drives for safety critical applications. The key aim of this project is to develop an electrical drive system with enhanced tolerance to system faults. The research is significant as it aims to satisfy the demands of emerging high-reliability applications for electric drive systems utilising a patented concentrated-wound permanent magnet machine. Applications for the research include the automotive, aerospace and resource sectors which are global growth sectors. A new high-quality model of the machine is expected to be realised. This new model is proposed to then inform the development of suitable control techniques for the machine driven by fault-tolerant inverter topologies. The research is then planned to be demonstrated on prototype research machines and the system performance compared with existing state-of-the-art technology.Read moreRead less
Optimum rotor and concentrated stator-winding structures for improving the torque, field-weakening and power-density characteristics of interior permanent-magnet machines. The successful completion of this project will deliver one of the most energy efficient and compact motor which will meet the expectations of future electric and hybrid electric vehicles. The current generation of surface Permanent Magnet (PM) and Interior Permanent Magnet (IPM) motors are not optimized in terms of compactness ....Optimum rotor and concentrated stator-winding structures for improving the torque, field-weakening and power-density characteristics of interior permanent-magnet machines. The successful completion of this project will deliver one of the most energy efficient and compact motor which will meet the expectations of future electric and hybrid electric vehicles. The current generation of surface Permanent Magnet (PM) and Interior Permanent Magnet (IPM) motors are not optimized in terms of compactness, energy-density and efficiency, and torque characteristics. Australia has the world's second largest reserve of the magnet material for IPM machines. It also has a significant niche industry for specialized machine design. These twin advantages should offer Australia huge potential benefits in the world market for electric and hybrid electric vehicles and for substantial reduction in our dependence on importing petrol and greenhouse gas emissions.Read moreRead less
A new spectrum access technology for future wireless terminals. This project will develop a new frequency flexible wireless transceiver structure for the next generation of smartphones and wireless devices. The project will improve the roaming experience of travellers and reduce the cost of wireless connectivity, enabling new applications such as machine-to-machine communications and the internet-of-things.