Integrated GPS and interferometric SAR techniques for ground subsidence monitoring. The Global Positioning System (GPS) is commonly used for measuring ground subsidence due to underground mining and similar activities. However, GPS techniques cannot easily survey a dense enough grid of points to monitor subsidence across a wide area. This project aims to densify the GPS field measurements with the interferometric processing of Synthetic Aperture Radar (SAR) images. The outcomes of this research ....Integrated GPS and interferometric SAR techniques for ground subsidence monitoring. The Global Positioning System (GPS) is commonly used for measuring ground subsidence due to underground mining and similar activities. However, GPS techniques cannot easily survey a dense enough grid of points to monitor subsidence across a wide area. This project aims to densify the GPS field measurements with the interferometric processing of Synthetic Aperture Radar (SAR) images. The outcomes of this research include optimal integration models, operational software systems and quality-control measures. A test area south of Sydney, where subsidence caused by underground coal mining is having significant detrimental effect on surface infrastructure, will be monitored over a three-year period.Read moreRead less
Real-Time Integration of GPS with INS For Precise Long-Baseline Kinematic Positioning. Although Australian researchers have played an important role in the development of carrier phase-based GPS kinematic positioning algorithms and methodologies over the last two decades, investigations concerning high precision multi-sensor integration have been comparatively limited. This ARC project would go a significant way towards remedying this situation by building up theoretical and practical expertise ....Real-Time Integration of GPS with INS For Precise Long-Baseline Kinematic Positioning. Although Australian researchers have played an important role in the development of carrier phase-based GPS kinematic positioning algorithms and methodologies over the last two decades, investigations concerning high precision multi-sensor integration have been comparatively limited. This ARC project would go a significant way towards remedying this situation by building up theoretical and practical expertise in sensor integration techniques at the postdoctoral level. The outcomes of this project will represent a significant contribution to Australian R&D in the fields of precise positioning and navigation, since they will be directly applicable to the design and development of a variety of integrated multi-sensor systems.Read moreRead less
Stochastic modelling for high precision GPS positioning applications. Realistic stochastic modelling for measurements is one of the fundamental and challenging issues in a wide range of scientific problems. This project aims to develop and test an innovative stochastic modelling methodology for high precision GPS positioning applications. The new stochastic modelling methodology will significantly improve the accuracy and reliability of satellite positioning results. The expected outcomes are ....Stochastic modelling for high precision GPS positioning applications. Realistic stochastic modelling for measurements is one of the fundamental and challenging issues in a wide range of scientific problems. This project aims to develop and test an innovative stochastic modelling methodology for high precision GPS positioning applications. The new stochastic modelling methodology will significantly improve the accuracy and reliability of satellite positioning results. The expected outcomes are: (1) new knowledge about the statistical characteristics of satellite measurements; (2) development of a new error analysis framework; and (3) development of computationally efficient data processing algorithms to support high precision GPS positioning applications.Read moreRead less
Robust Positioning Based on Ultra-Tight Integration of GPS, Pseudolites and Inertial Sensors. The Global Positioning System (GPS) has been becoming an increasingly important part of the world-wide geo-spatial information infrastructure. However, the availability and reliability of GPS positioning are still major challenging issues. This project proposes a new concept of robust positioning based on the ultra-tight integration of GPS, pseudolites and inertial sensor. The expected outcomes include: ....Robust Positioning Based on Ultra-Tight Integration of GPS, Pseudolites and Inertial Sensors. The Global Positioning System (GPS) has been becoming an increasingly important part of the world-wide geo-spatial information infrastructure. However, the availability and reliability of GPS positioning are still major challenging issues. This project proposes a new concept of robust positioning based on the ultra-tight integration of GPS, pseudolites and inertial sensor. The expected outcomes include: 1) a novel sensor integration approach, 2) innovative smart antenna design, 3) efficient algorithms and quality control procedures for signal acquisition and tracking, which can effectively suppress interferences and enhance the weak signal tracking.Read moreRead less
Preparing for the next generation global navigation satellite system era: developing and testing new user and reference station receiver designs. The gross accumulated benefits of the widespread adoption of Gnss technology in the mining, agriculture and construction sectors alone by 2030 could be between $66B and $126B, primarily due to improvements in Gnss machine guidance systems - energy savings, reduction in carbon dioxide emissions, improved agricultural practices, etc. The national benefit ....Preparing for the next generation global navigation satellite system era: developing and testing new user and reference station receiver designs. The gross accumulated benefits of the widespread adoption of Gnss technology in the mining, agriculture and construction sectors alone by 2030 could be between $66B and $126B, primarily due to improvements in Gnss machine guidance systems - energy savings, reduction in carbon dioxide emissions, improved agricultural practices, etc. The national benefit would be enormous if the project could help facilitate the rapid and orderly introduction into Australia of high accuracy multi-constellation Gnss positioning technology. This project would also enable Australian researchers and industry to build up expertise in new Gnss signals and techniques, all crucial for supporting a local industry for next generation navigation products and services.Read moreRead less