The New Zealand-based General Dynamics Co. has collaborated with us on several projects over the years, with a focus on designing and developing GPS receivers for specialised applications. The "Kea" receivers are the most recent product of our collaborations. You can find more information about the "Kea" receivers by clicking the icon to the right. These receivers can be purchased as a reference design for those engineers and developers who need to create their own GPS receiver. For flexibility the receiver uses an FPGA for baseband signal processing.
GPS has become ubiquitous in daily life, to an extent that the position, and often more importantly, the time delivered by GPS has become embedded in an increasing number of critical systems. However, given their low received power levels, GPS signals are very susceptible to interference from either intentional or unintentional sources. With the modern world becoming ever more reliant on GPS and other Global Navigation Satellite Systems (GNSS), GNSS has itself become a critical infrastructure and hence alleviating its vulnerability to interference has become of paramount importance.
GPSat Systems has partnered with us on not one, but two ARC grants, "GEMS" and "GEMS II", projects that seek to explore and extend the capability of GEMS to pinpoint attempts to jam or fake GPS signals (spoofers), before either has serious consequences. This work commenced in 2015 and will look at advanced signal processing algorithms and techniques to deal with weak interference and spoofers.
Concurrently, during 2014 the industrial partner GPSat Systems was awarded Capability and Technology Demonstrator (CTD) program funding and is working closely with ACSER and the University of Adelaide to further develop the system. This work commenced in early 2015.
Triggered by recent developments in vehicular safety, driverless vehicles etc., cooperative intelligent transport systems (C-ITS) has become a major research area, and over the past decade ACSER has developed a strong heritage in multi-sensor integration for land navigation. In 2014 Thales Alenia Space France approached us to study the benefits of integrating Inertial Measurement Unit (IMU), GNSS and V2V sensors, and how redundancy in such multi-sensor integrations mitigate the signal distortions due to multipath and Non-Line-of-Sight by rejecting measurements from effected signals. The study attracted a €40,000 consultancy fee from TAS and concluded that using non-conventional estimators can indeed significantly reduce positioning errors.
The Spun Microgravity Liquid Experiment (SMiLE) is a PhD research topic run conjointly with students and staff at the International Space University in Strasbourg, France. The project aims to investigate the development of droplets produced when a liquid exits a circular nozzle at a constant flow rate in a microgravity environment. In 2015 UNSW researchers flew to Toulouse to test their experiment in micro-gravity aboard a seried of parabolic flights. You can see video of the parabolic flight testing here.
Nanoracks will be the company responsible for assisting in delivery of the experiment to its ultimate micro-gravity testing environment - the International Space Station.