Pseudo-Random Channel Shuffling Time-Division Multiplexing of Ultrasound Echoes in Ultrasound Imaging Integrated Circuits
Next generation wearable/implantable ultrasound imaging systems demand ultra-compact, power-efficient analog front-end circuits enabling high-resolution, high frame-rate multimodal imaging. Individual RF channel access allows for the use of state-of-the-art imaging methods such as synthetic aperture...
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| Published in: | IEEE International Ultrasonics Symposium (Online) pp. 1 - 5 |
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| Main Authors: | , , , |
| Format: | Conference Proceeding |
| Language: | English |
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IEEE
15.09.2025
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| ISSN: | 1948-5727 |
| Online Access: | Get full text |
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| Abstract | Next generation wearable/implantable ultrasound imaging systems demand ultra-compact, power-efficient analog front-end circuits enabling high-resolution, high frame-rate multimodal imaging. Individual RF channel access allows for the use of state-of-the-art imaging methods such as synthetic aperture imaging, plane-wave compounding and adaptive beamforming, while remaining crucial for auto-calibration of sparse transducer arrays. Time-division multiplexing-based (TDM) architectures have been widely deployed to enable individual RF channel access, but impose severe trade-offs between power and silicon area for imaging quality and contrast. This work introduces a pseudo-random channel-shuffling TDM (PRCS-TDM) technique, emulating a non-uniform sampling-rate for each RF channel. Results show PRCS-TDM improves B-mode contrast-to-noise ratio (CNR) in anechoic regions up to a 2× increase compared to conventional TDM, achieving a 3.2 dB CNR increase for channel compression ratios greater than 8. |
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| AbstractList | Next generation wearable/implantable ultrasound imaging systems demand ultra-compact, power-efficient analog front-end circuits enabling high-resolution, high frame-rate multimodal imaging. Individual RF channel access allows for the use of state-of-the-art imaging methods such as synthetic aperture imaging, plane-wave compounding and adaptive beamforming, while remaining crucial for auto-calibration of sparse transducer arrays. Time-division multiplexing-based (TDM) architectures have been widely deployed to enable individual RF channel access, but impose severe trade-offs between power and silicon area for imaging quality and contrast. This work introduces a pseudo-random channel-shuffling TDM (PRCS-TDM) technique, emulating a non-uniform sampling-rate for each RF channel. Results show PRCS-TDM improves B-mode contrast-to-noise ratio (CNR) in anechoic regions up to a 2× increase compared to conventional TDM, achieving a 3.2 dB CNR increase for channel compression ratios greater than 8. |
| Author | Costa, Tiago M. L. Desmarais, Samuel Goes, Joao Dias, Diogo |
| Author_xml | – sequence: 1 givenname: Diogo surname: Dias fullname: Dias, Diogo email: das.dias@campus.fct.unl.pt organization: UNINOVA-CTS,LASI,Dept. of Electrical and Computer Eng.,Portugal – sequence: 2 givenname: Joao surname: Goes fullname: Goes, Joao organization: UNINOVA-CTS,LASI,Dept. of Electrical and Computer Eng.,Portugal – sequence: 3 givenname: Samuel surname: Desmarais fullname: Desmarais, Samuel organization: EEMCS-Delft University of Technology,Bioelectronics Group,Microelectronics Dpt.,Delft,The Netherlands – sequence: 4 givenname: Tiago M. L. surname: Costa fullname: Costa, Tiago M. L. organization: EEMCS-Delft University of Technology,Bioelectronics Group,Microelectronics Dpt.,Delft,The Netherlands |
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| Snippet | Next generation wearable/implantable ultrasound imaging systems demand ultra-compact, power-efficient analog front-end circuits enabling high-resolution, high... |
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| SubjectTerms | Analog Front-End ASICs Compressive Sensing Image coding Imaging Integrated circuits Next generation networking Power dissipation Radio frequency Silicon Time division multiplexing Transducers Ultrasonic imaging Ultrasound Imaging Ultrasound Stimulation |
| Title | Pseudo-Random Channel Shuffling Time-Division Multiplexing of Ultrasound Echoes in Ultrasound Imaging Integrated Circuits |
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