Cart (Loading....) | Create Account
Close category search window

An efficient BScan-sample-based ΣΔ beamformer for medical ultrasound imaging

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Liji Chen ; Electron. & Comput. Eng. Dept., Hong Kong Univ. of Sci. & Technol., Hong Kong, China ; Ruoyu Xu ; Jie Yuan

ΣΔ beamforming is a promising technique for small analog front-end (AFE) of the medical ultrasound imaging system. Nonetheless, the high data rate from the ΣΔ modulator in the AFE and the high-Q reconstruction filter put harsh requirements on the digital beamforming circuits. Although the BScan-sample-based ΣΔ beamformer structure with FIR reconstruction filter reduces the speed requirement on multipliers so as to make the ΣΔ beamformer implementable in conventional digital platforms, it still requires large area for high-speed adders. In this work, a new BScan-sample-based ΣΔ beamformer structure with IIR reconstruction filter is developed. The new structure greatly reduces the hardware cost. Both ΣΔ beamformers are implemented in FPGAs and digital ICs. The new beamformer is 8 times smaller than the FIR beamformer. For a 128-element, 5MHz ultrasound medical imaging system with 256 beamformers, the new ΣΔ beamformer can be implemented with 2 FPGA chips or a 5.2mm×5.2mm digital IC in 0.18μm CMOS logic process.

Published in:

Biomedical Circuits and Systems Conference, 2009. BioCAS 2009. IEEE

Date of Conference:

26-28 Nov. 2009

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.