Efficient Parallel Real-Time Upsampling of Ultrasound Vectors

Authors

William D. Richard Ph.D., Washington University in St LouisFollow

Document Type

Technical Report

Department

Computer Science and Engineering

Publication Date

2013

Filename

WUCSE-2013-14.pdf

Technical Report Number

WUCSE-2013-14

Abstract

Upsampling is required prior to the summation step in most receive digital beamforming implementations to produce an accurate summed RF line or vector. This is true in both annular and linear array systems where receive echos are digitized first and then time delayed in the digital domain to achieve proper signal alignment. The efficient, parallel, real-time upsampling circuit presented here produces M upsampled values per ADC clock, where M is the desired upsampling factor. A circuit implementation that upsamples by a factor of M=4 is presented as an example of the more general technique.

Comments

Permanent URL: http://dx.doi.org/10.7936/K7F47MCP

Recommended Citation

Richard, William D. Ph.D., "Efficient Parallel Real-Time Upsampling of Ultrasound Vectors" Report Number: WUCSE-2013-14 (2013). All Computer Science and Engineering Research.
https://openscholarship.wustl.edu/cse_research/99