Ultrasonics and Instrumentation
Journal Publications
| Ho-Van K; Sofotasios PC; Freear S Underlay cooperative cognitive networks with imperfect Nakagami-m fading channel information and strict transmit power constraint: Interference statistics and outage probability analysis. Journal of Communications and Networks, vol. 16, pp.10-17. 2014. | DOI |
| Sofotasios PC; Rebeiz E; Zhang L; Tsiftsis TA; Cabric D; Freear S Energy Detection Based Spectrum Sensing Over kappa-mu and kappa-mu Extreme Fading Channels. IEEE Transactions on Vehicular Technology, vol. 62, pp.1031-1040. 2013. | LINK DOI |
| Staples SGH; Vo C; Cowell DMJ; Freear S; Ives C; Varcoe BTH Solving the inverse problem of magnetisation-stress resolution. Journal of Applied Physics, vol. 113, 2013. | LINK DOI |
| Cowell DMJ; Smith PR; Freear S Phase-inversion-based selective harmonic elimination (PI-SHE) in multi-level switched-mode tone-and frequency-modulated excitation. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 60, pp.1084-1097. 2013. | LINK DOI |
| Harput S; Arif M; McLaughlan, J; Cowell DMJ; Freear S The Effect of Amplitude Modulation on Subharmonic Imaging with Chirp Excitation. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 60, pp.2532-2544. 2013. | LINK DOI |
| McLaughlan J; Ingram N; Smith PR; Harput S; Coletta PL; Evans S; Freear S Increasing the sonoporation efficiency of targeted polydisperse microbubble populations using chirp excitation. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 60, pp.2511-2520. 2013. | LINK DOI |
| Smith PR; Cowell DMJ; Freear S Width-modulated square-wave pulses for ultrasound applications. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 60, pp.2244-2256. 2013. | DOI |
| Cowell DMJ; Smith PR; Freear S Tomographic array design for online, non-invasive, non-intrusive measurement of magnox slurry during nuclear decommissioning. IEEE International Ultrasonics Symposium, IUS, pp.1865-1868. 2013. | DOI |
| Ingham RH; James R; Smith PR; Cowell DMJ; Freear S Transducer excitation with switched-mode encoded signals for harmonic and amplitude control verified using the Leach model. IEEE International Ultrasonics Symposium, IUS, pp.457-460. 2013. | DOI |
| Smith PR; Cowell DMJ; Raiton B; Vo Ky C; Freear S Ultrasound array transmitter architecture with high timing resolution using embedded phase-locked loops. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 59, pp.40-49. 2012. | LINK DOI |
| Raiton B; McLaughlan JR; Harput S; Smith PR; Cowell DMJ; Freear S The capture of flowing microbubbles with an ultrasonic tap using acoustic radiation force. Applied Physics Letters, vol. 101, pp.044102-044102-4. 2012. | LINK DOI |
| Passas G; Freear S VLSI architectures for sliding-window-based space-time turbo trellis code decoders. Journal of Electrical and Computer Engineering, 2012. | DOI |
| Peyman SA; Abou-Saleh RH; McLaughlan JR; Ingram N; Johnson BR; Critchley K; Freear S; Evans JA; Markham AF; Coletta PL; Evans SD Expanding 3D geometry for enhanced on-chip microbubble production and single step formation of liposome modified microbubbles. Lab on a Chip, vol. 12, pp.4544-4552. 2012. | LINK DOI |
| Qureshi SS; Rajpoot KM; Smith PR; Cowell DMJ; Freear S A compact, parameterized, real-time beamformer, benchmarked for ultrasound imaging. IEEE International Ultrasonics Symposium, IUS, pp.1485-1488. 2012. | DOI |
| Harput S; Evans JA; Bubb N; Freear S Diagnostic Ultrasound Tooth Imaging using Fractional Fourier Transform. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 58, pp.2096-2106. 2011. | LINK DOI |
| Arif M; Cowell DM; Freear S Pulse compression of harmonic chirp signals using the fractional fourier transform. Ultrasound Med Biol, vol. 36, pp.949-956. 2010. | LINK DOI |
| Cowell DMJ; Freear S Separation of Overlapping Linear Frequency Modulated (LFM) Signals Using the Fractional Fourier Transform. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 57, pp.2324-2333. 2010. | LINK DOI |
| Konstantinidis S; Freear S Performance Analysis of Tikhonov Regularized LS Channel Estimation for MIMO OFDM Systems with Virtual Carriers. Wireless Personal Communications, pp.1-15. 2010. | DOI |
| Passas G; Freear S; Fawcett D The Effect of Structural Design Parameters on FPGA-based Feed-Forward STTC-OFDM Channel Encoders. International Journal of Electronics, vol. 97, pp.907-926. 2010. | DOI |
| Zhou Y; Mei T; Freear S Field programmable gate array implementation of wheel-rail contact laws. IET Control Theory & Applications, vol. 4, pp.303-313. 2010. | DOI |
| Zhou Y; Mei T; Freear S Real-time Modeling of Wheel-rail Contact Laws With System-on-chip. IEEE Transactions on Parallel and Distributed Systems, vol. 21, pp.672-684. 2010. | DOI |
| Passas G; Freear S; Fawcett D Area, Speed and Power Measurements of FPGA-based Complex Orthogonal STBC Channel Encoders. International Journal of Electronics, vol. Volume 97, pp.31-43. 2010. | DOI |
| Huang QF; Ghogho M; Freear S Pilot Design for MIMO OFDM Systems With Virtual Carriers. IEEE Transactions on Signal Processing, vol. 57, pp.2024-2029. 2009. | DOI |
| Cowell DM; Freear S Quinary excitation method for pulse compression ultrasound measurements. Ultrasonics, vol. 48, pp.98-108. 2008. | LINK DOI |
Conference Proceedings
| Perelli A; De Marchi L; Harput S; Freear S Frequency warping compressive sensing for structural monitoring of aircraft wing in: 2013 18th International Conference on Digital Signal Processing, DSP 2013. 2013. | DOI |
| Sofotasios PC; Freear S; Tsiftsis TA; Van KH; Wilhelmsson LR; Valkama M The κ-μ/IG composite statistical distribution in RF and FSO wireless channels in: IEEE Vehicular Technology Conference. 2013. | DOI |
| Sofotasios PC; Tsiftsis TA; Van KH; Freear S; Wilhelmsson LR; Valkama M; IEEE The kappa-mu/IG Composite Statistical Distribution in RF and FSO Wireless Channels in: 2013 IEEE 78TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL). 2013. | LINK |
| McLaughlan J; Harput S; Freear S; Ingramy N; Colettay L; Abou-Salehzx R; Evansz S; Evans T High-frequency subharmonic imaging of liposome-loaded microbubbles in: IEEE International Ultrasonics Symposium, IUS, pp.1501-1504. 2013. | DOI |
| Harput S; McLaughlan J; Smith PR; Cowell DMJ; Freear S; Arif M Extraction of spectrally overlapped second harmonic using the fractional Fourier transform in: IEEE International Ultrasonics Symposium, IUS, pp.37-40. 2013. | DOI |
| Perelli A; Harput S; Freear S; De Marchi L Compressive sensing with frequency warped compensation for damage detection in composite plate in: IEEE International Ultrasonics Symposium, IUS, pp.158-161. 2013. | DOI |
| Charutz DM; Harput S; Cowell DMJ; Smith PR; Freear S; Mor E Guided wave enhancement phased array beamforming scheme using recursive feedback in: IEEE International Ultrasonics Symposium, IUS, pp.166-169. 2013. | DOI |
| Sofotasios P; Freear S The κ-µ Extreme/Gamma Distribution: A Physical Composite Fading Model in: IEEE Wireless Communications and Networking Conference (WCNC), pp.1398-1401. 2011. | DOI |
| Harput S; Sofotasios SP; Freear S A Novel Composite Statistical Model For Ultrasound Applications in: IEEE International Ultrasonics Symposium (IUS '11). 2011. | |
| Arif M; Harput S; Smith P; Cowell DMJ; Freear S Extraction of an Overlapped Second Harmonic Chirp Component using the Fractional Fourier Transform in: 11 IEEE International Ultrasonics Symposium Proceedings, pp.405-408. IEEE. 2011. | LINK DOI |
| Cowell DMJ; Smith P; Freear S Harmonic Cancellation in Switched Mode Linear Frequency Modulated (LFM) Excitation of Ultrasound Arrays in: Ultrasonics Symposium (IUS), 2011 IEEE International, pp.454-457. IEEE. 2011. | LINK DOI |
| Harput S; Evans T; Bubb N; Freear S Detection of Restoration Faults under Fillings in Human Teeth using Ultrasound in: 2011 IEEE International Ultrasonics Symposium (IUS). IEEE. 2011. | LINK DOI |
| Harput S; Raiton B; Sofotasios PC; Mclaughlan J; Evans S; Freear S The Periodicity between the Aggregated Microbubbles by Secondary Radiation Force in: IEEE International Ultrasonics Symposium (IUS '11). 2011. | |
| Raiton B; Harput S; Mclaughlan J; Freear S Counter flow microbubble channeling using acoustic radiation force funnel in: Ultrasonics Symposium (IUS), 2011 IEEE International, pp.2432-2435. IEEE. 2011. | LINK DOI |
| Sofotasios PC; Freear S Novel Results for the Incomplete Toronto Function and Incomplete Lipschitz-Hankel Integrals in: IEEE International Microwave and Optoelectronics Conference (IMOC '11). 2011. | |
| Sofotasios PC; Freear S The α-κ-μ Extreme Distribution: Characterizing Non Linear Severe Fading Conditions in: Australasian Telecommunication Networks And Applications Conference (ATNAC '11). 2011. | |
| Sofotasios PC; Freear S Upper and Lower Bounds for the Rice Ie-function in: Australasian Telecommunication Networks And Applications Conference (ATNAC '11). 2011. | |
| Sofotasios PC; Freear S The η-μ/gamma and the λ-μ/gamma Multipath/Shadowing Distributions in: Australasian Telecommunication Networks And Applications Conference (ATNAC '11). 2011. | |
| Freear S The α-κ-μ/gamma Composite Distribution: A Generalized Non-Linear Multipath/Shadowing Fading Model in: IEEE INDICON '11. 2011. | |
| Sofotasios PC; Freear S New analytic expressions for the Rice Function and the Incomplete Lipschitz-Hankel Integrals in: IEEE INDICON '11. 2011. | |
| Sofotasios PC; Freear S Simple and Accurate Approximations for the Two Dimensional Gaussian Q-Function in: IEEE Vehicular Technology Conference (VTC-Spring '11). 2011. | |
| Sofotasios PC; Freear S; IEEE The kappa-mu Extreme/Gamma Distribution: A Physical Composite Fading Model in: 2011 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC), pp.1398-1401. 2011. | LINK |
| Sofotasios PC; Freear S On the η-μ/gamma and the λ-μ/gamma multipath/shadowing distributions in: Australasian Telecommunication Networks and Applications Conference, ATNAC 2011. 2011. | DOI |
| Sofotasios PC; Freear S Analytic expressions for the Rice Ie-function and the incomplete Lipschitz-Hankel Integrals in: Proceedings - 2011 Annual IEEE India Conference: Engineering Sustainable Solutions, INDICON-2011. 2011. | DOI |
| Sofotasios PC; Freear S The α - κ - μ/gamma distribution: A generalized non-linear multipath/shadowing fading model in: Proceedings - 2011 Annual IEEE India Conference: Engineering Sustainable Solutions, INDICON-2011. 2011. | DOI |
| Sofotasios PC; Freear S On the κ-μ/gamma composite distribution: A generalized multipath/shadowing fading model in: SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings, pp.390-394. 2011. | DOI |
| Sofotasios PC; Freear S New analytic results for the incomplete Toronto function and incomplete Lipschitz-Hankel Integrals in: SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings, pp.44-47. 2011. | DOI |
| Zhou Y; Freear S; Mei TX Matrix Aided Task Scheduling – A Scheduling Scheme with Mathematical Representation of Task Dependency in: 6th International Workshop on Parallel Matrix Algorithms and Applications (PMAA'10). 2010. | |
| Sofotasios PC; Freear S The η-μ/gamma Composite Fading Model in: IEEE International Conference on Wireless Information Technology and Systems (ICWIT'10). 2010. | DOI |
| Sofotasios PC; Freear S Novel Expressions for the One and Two Dimensional Gaussian Q-Functions in: IEEE International Conference on Wireless Information Technology and Systems (ICWIT'10). 2010. | DOI |
| Sofotasios PC; Freear S The κ-μ/gamma Composite Fading Model in: IEEE International Conference on Wireless Information Technology and Systems (ICWIT'10). 2010. | DOI |
| Sofotasios PC; Freear S A Novel Representation for the Nuttall Q-Function in: IEEE International Conference on Wireless Information Technology and Systems (ICWIT'10). 2010. | DOI |
| Sofotasios PC; Freear S Novel expressions for the Marcum and one dimensional Q-functions in: Proceedings of the 2010 7th International Symposium on Wireless Communication Systems, ISWCS'10, pp.736-740. 2010. | DOI |
| Arif M; Harput S; Freear S Performance Evaluation of Nonlinear Frequency Modulated Signals in Ultrasound Harmonic Imaging in: Ultrasonics Symposium (IUS), 2010 IEEE, pp.2016-2019. IEEE. 2010. | LINK DOI |
| Smith PR; Cowell DMJ; Raiton B; Ky CV; Pham TH; Bui BQ; Freear S A PLL-based phased array method to minimize phase quantization errors andreduce phasing-lobes in: Proceedings - IEEE Ultrasonics Symposium, pp.1837-1840. 2010. | DOI |
| Arif M; Harput S; Freear S Experimental investigation of chirp coded excitation in ultrasoundsuperharmonic imaging in: Proceedings - IEEE Ultrasonics Symposium, pp.2187-2190. IEEE. 2010. | LINK DOI |
| Raiton B; Freear S Increased frame rate for linear array imaging using novel frequency modulation scheme in: Proceedings - IEEE Ultrasonics Symposium, pp.2295-2298. IEEE. 2010. | LINK DOI |
| Harput S; Arif M; Freear S Experimental investigation of the subharmonic emission from microbubbles using linear and nonlinear frequency modulated signals in: Proceedings - IEEE Ultrasonics Symposium, pp.1724-1727. IEEE. 2010. | DOI |
| O'Rorke R; Cunningham J; Wood CD; Walti C; Davies AG; Evans SD; Linfield EH; Harput S; Freear S The Alignment of Micron-Scale Particles in Fluidic Systems Using Surface Acoustic Waves in: IEEE International Ultrasonics Symposium. 2009. | |
| Yuan F; Bell A; Comyn T; Ellwood S; Freear S; James C; Milne S; Royles A; Skidmore T Evaluation of Lead-free Piezoelectric and PZT Ceramics: Considerations for Ultrasound Imaging Applications in: IEEE International Symposium on Applications of Ferroelectrics. 2009. | |
| Harput S; Cowell DMJ; Evans JA; Bubb N; Freear S Tooth Characterization using Ultrasound with Fractional Fourier Transform in: IEEE International Ultrasonics Symposium. 2009. | DOI |
| Ellwood S; Freear S; Bell AJ; Comyn TP Lowering the Centre Frequency of Thick Film PZT Devices Using Acoustically Matched Backing Layers in: IEEE International Ultrasonics Symposium. 2009. | DOI |
| Arif M; Freear S Fractional Fourier Transform with Pulse Inversion for Second Harmonic Pulse Compression in: 2009 IEEE International Ultrasonics Symposium Proceedings, pp.1227-1230. IEEE. 2009. | LINK DOI |
| Mei T; Zhou Y; Freear S System-On-Chip Approach for Acceleration Wheel-Rail Contact Algorithms in: 21st International Symposium on Dynamics of Vehicles on Roads and Tracks (IAVSD 2009). 2009. | |
| Zhou YJ; Mei TX; Freear S FPGA implementation of wheel-rail contacts laws in: UKACC2008. 2008. | |
| Cowell DM; Freear S Binary coded pulse compression and its application to ultrasonics in: 5th World Congress on Industrial Process Tomography. 2007. | |
| Chen Qiang A; Cowell DM; Freear S Measurement of Solid in Liquid Content Using Ultrasound Attenuation in: 5th World Congress on Industrial Process Tomography. 2007. | |
| Cowell DM; Freear S Ultrasonic signal characteristics in the presence of highly reflecting solid/liquid interfaces in: 5th World Congress on Industrial Process Tomography. 2007. | |
| Freear S; Cowell DM NDT system on a chip in: NDT 2007. 2007. | |
| Cowell DM; Freear S; Podd FJW Coded excitation of air coupled ultrasound transducers in: 4th International Symposium on Process Tomography . 2006. | |
| Passas G; Konstantinidis S; Freear S; Fawcett D A Space-time coded OFDM-based MIMO System for Mobile Wireless Multimedia Applications in: Second International Symposium on Broadband Communications. 2006. | |
| Konstantinidis S; Passas G; Freear S; Fawcett D; Markarian G An Overview on Channel Estimation for OFDM Wireless Systems in: Second International Symposium on Broadband Communications. 2006. | |
| Cowell DM; Freear S; Podd FJW Pulse Compression in Ultrasound Spectroscopy and Imaging in: Ultrasound in the Processing of Industrial Soft Materials. 2006. | |
| Passas G; Freear S; Fawcett D Space-time block coded OFDM-based Transmitters for Mobile in: IEEE International Symposium on Broadband Multimedia Systems and Broadcasting 2006. 2006. | |
| Cowell DM; Freear S; Podd FJW Multiple simultaneous ultrasound measurements using binary coded excitation sequences for fast ultrasound imaging in: 4th International Symposium on Process Tomography. 2006. | |
| Freear S; Cowell DM; Podd FJW Ultrasound Imaging Using Coded Excitation in: 4th World Congress on Industrial Process Tomography, Aizu, Japan. 2005. | |
| Soleimani M; Aykroyd RG; Freear S; Lionheart WRB; Podd FJW Multi-modal data fusion for enhanced imaging applied to 3D ERT with ultrasound time of flight data in: 4th World Congress on Industrial Process Tomography, Aizu, Japan. 2005. | |
| Winckler C; Smith PR; Olagunju O; Cowell DMJ; Freear S The design of a high speed receiver system for ultrasound array research platform (UARP) in: IEEE International Ultrasonics Symposium (IUS '12). . |
Patents
| Freear S; Sofotasios P EP2369801 Data receiver with improved response to long and short term data signal fading. 2011. | |
| Freear S; Konstantinidis S EP Patent 2,369,799, US Patent App. 13/070,533 Receiver with High Performance Channel Estimation. 2011. | |
| Brown, III CL; Crawford N; Freear S US Patent No: 6,219,577/Iontophoresis, electroporation and combination catheters for local drug delivery to arteries and other body tissues. 2001. |
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