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David M J Cowell
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Year
Separation of overlapping linear frequency modulated (LFM) signals using the fractional Fourier transform
DMJ Cowell, S Freear
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 57 …, 2010
1502010
Width-modulated square-wave pulses for ultrasound applications
PR Smith, DMJ Cowell, S Freear
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 60 …, 2013
622013
Ultrasound array transmitter architecture with high timing resolution using embedded phase-locked loops
PR Smith, DMJ Cowell, B Raiton, CV Ky, S Freear
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 59 …, 2012
622012
The effect of amplitude modulation on subharmonic imaging with chirp excitation
S Harput, M Arif, J McLaughlan, DMJ Cowell, S Freear
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 60 …, 2013
602013
Quinary excitation method for pulse compression ultrasound measurements
DMJ Cowell, S Freear
Ultrasonics 48 (2), 98-108, 2008
592008
Phase-inversion-based selective harmonic elimination (PI-SHE) in multi-level switched-mode tone-and frequency-modulated excitation
DMJ Cowell, PR Smith, S Freear
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 60 …, 2013
482013
Gold nanoparticle nucleated cavitation for enhanced high intensity focused ultrasound therapy
JR McLaughlan, DMJ Cowell, S Freear
Physics in Medicine & Biology 63 (1), 015004, 2017
312017
A Reduced-Wire ICE Catheter ASIC with Tx Beamforming and Rx Time-Division Multiplexing
G Jung, C Tekes, MW Rashid, TM Carpenter, D Cowell, S Freear, ...
IEEE transactions on biomedical circuits and systems 12 (6), 1246-1255, 2018
302018
The capture of flowing microbubbles with an ultrasonic tap using acoustic radiation force
B Raiton, JR McLaughlan, S Harput, PR Smith, DMJ Cowell, S Freear
Applied Physics Letters 101 (4), 044102, 2012
302012
Direct digital demultiplexing of analog TDM signals for cable reduction in ultrasound imaging catheters
TM Carpenter, MW Rashid, M Ghovanloo, DMJ Cowell, S Freear, ...
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 63 …, 2016
292016
New performance metrics for ultrasound pulse compression systems
S Harput, J McLaughlan, DMJ Cowell, S Freear
2014 IEEE International Ultrasonics Symposium, 440-443, 2014
252014
Superharmonic imaging with chirp coded excitation: Filtering spectrally overlapped harmonics
S Harput, J McLaughlan, DMJ Cowell, S Freear
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 61 …, 2014
242014
Solving the inverse problem of magnetisation–stress resolution
SGH Staples, C Vo, DMJ Cowell, S Freear, C Ives, BTH Varcoe
Journal of Applied Physics 113 (13), 133905, 2013
242013
Spatial resolution and contrast enhancement in photoacoustic imaging with filter delay multiply and sum beamforming technique
A Alshaya, S Harput, AM Moubark, DMJ Cowell, J McLaughlan, S Freear
2016 IEEE International Ultrasonics Symposium (IUS), 1-4, 2016
212016
Enhancement of contrast and resolution of B-mode plane wave imaging (PWI) with non-linear filtered delay multiply and sum (FDMAS) beamforming
AM Moubark, Z Alomari, S Harput, DMJ Cowell, S Freear
2016 IEEE International Ultrasonics Symposium (IUS), 1-4, 2016
212016
Real-time imaging system using a 12-MHz forward-looking catheter with single chip CMUT-on-CMOS array
C Tekes, T Xu, TM Carpenter, S Bette, U Schnakenberg, D Cowell, ...
2015 IEEE International Ultrasonics Symposium (IUS), 1-4, 2015
202015
Hifu drive system miniaturization using harmonic reduced pulsewidth modulation
C Adams, TM Carpenter, D Cowell, S Freear, JR McLaughlan
IEEE transactions on ultrasonics, ferroelectrics, and frequency control 65 …, 2018
192018
Pulse compression of harmonic chirp signals using the fractional Fourier transform
M Arif, DMJ Cowell, S Freear
Ultrasound in medicine & biology 36 (6), 949-956, 2010
192010
Concentration profiling of a horizontal sedimentation tank utilising a bespoke acoustic backscatter array and CFD simulations
TN Hunter, J Peakall, D Egarr, DMJ Cowell, S Freear, AS Tonge, L Horton, ...
Chemical Engineering Science 218, 115560, 2020
182020
Review of battery powered embedded systems design for mission-critical low-power applications
M Malewski, DMJ Cowell, S Freear
International Journal of Electronics 105 (6), 893-909, 2018
172018
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