The University of Sydney

University of Cape Town

Andre Van Schaik

David Holder

Jonathan Craig Tapson

Craig Jin

Nicolas Epain

Alistair Lee McEwan

Equipment () for reconstructing a recorded sound field includes a sensing arrangement () for measuring the sound field to obtain recorded data. A signal processing module () is in communication with the sensing arrangement () and processes the recorded data for the purposes of at least one of (a) estimating the sparsity of the recorded sound field and (b) obtaining plane-wave signals to enable the recorded sound field to be reconstructed.

Reconstruction of a recorded sound field

A method is provided for taking electrical impedance tomography measurements using multiple electrodes located at selected positions external to a volume of a subject body. Multiple orthogonal or near-orthogonal signals are introduced simultaneously by way of selected different electrodes and resultant predetermined responses (if any) at receiving electrodes are recorded or determined. The signals are encoded using the technique of code division multiplexing and received signals at each receiving electrode are cross-correlated with original signals to determine the contribution of each original signal to a composite received signal. The invention also relates to apparatus suitable for use in applying a method.

System and method for conducting multiplexed electrical impedance tomography

Growing community of inventors

Blackheath, Australia

Andre Van Schaik