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Development of GPS Receiver Kalman Filter Algorithms for Stationary, Low-Dynamics, and High-Dynamics Applications

This report presents algorithms that can be utilized in a GPS receiver to convert satellite-to-receiver pseudo-ranges to receiver position estimates. The report discusses a method that is used to determine instantaneous estimates of receiver position and then goes on to develop three Kalman filter based estimators, which use stationary receiver, low dynamics, and high dynamics models for the receiver motion, respectively.

A Review of Sparsity-Based Methods for Analysing Radar Returns from Helicopter Rotor Blades

Recently, a novel tilted-wire' scatterer model has been developed that can provide an accurate and sparse representation of radar returns from such objects. Following a literature review on compressed sensing algorithms, covering both greedy and lp minimisation methods (0 < p ≤ 1), the report focuses on a comparative study of various greedy pursuit algorithms, using both simulated and real radar data, with a particular emphasis on the use of the tilted-wire scatterer model.

National Science Award for Electronic Warfare Expert

Hero Image: 
Dr Tony Lindsay with Senator Sandy Macdonald and CDS Dr Roger Lough.
Dr Tony Lindsay with Senator Sandy Macdonald and CDS Dr Roger Lough.
Dr Tony Lindsay was awarded for his outstanding achievement in enhancing protection for Australian Defence Force (ADF) aircraft against electronic warfare threats.

Wide Area Motion Imagery (WAMI)

The Imaging Systems Branch conducts research and development into the use of Wide Area Motion Imagery (WAMI) for Defence and National Security.

Modelling a C-Band Space Surveillance Radar using Systems Tool Kit

Studies investigating the operational performance of the system for surveillance of Space and the contribution it could make to the Space situational awareness mission used the System Kit Tools to develop and model of the AN/FPQ-14 C-Band radar.

Optimal Detection in the K-Distributed Clutter Environment -- Non-Coherent Radar Detector Processing

In the maritime environment, radar detection unavoidably needs to deal with unwanted signals, primarily sea clutter (echoes from the sea surface). This report focuses on the non-coherent detection of Gaussian targets (Swerling II targets) in the compound K-distributed clutter environment.

Sea-Spike Detection in High Grazing Angle X-band Sea-Clutter

This report focuses on understanding the characteristics of sea-spikes as they are often the cause of false detections in a radar processor.

Hyperspectral imaging

Hyperspectral imaging divides optical and infrared images into hundreds of spectral bands.

Over The Horizon Radar (OTHR) surface vessel detection and tracking

One element of DSTG's recent research in this area has been concerned with improving OTHR detection and tracking performance against larger, slow moving targets such as ships on the ocean surface.

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