Signal to noise gains for evaluating beamforming strategies

Jie Liu, Kang Sik Kim, Michael Insana

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper defines the echo signal-to-noise ratio (eSNR) for pulse-echo systems that adapts to the effects of shift-varying impulse responses, spatiotemporal coding and various beamformers. Measurement techniques using point targets or random scattering media can be interrelated for a broad range of experimental conditions through eSNR. The eSNR definitions are also illustrated by comparing a spatial matched filter (SMF) beamformer to conventional dynamic receive focusing methods (DRF) to evaluate performance based on resolution and sensitivity. Closed-form expressions are presented that predict eSNR gains from SMF approaches relative to other beamformers.

Original languageEnglish (US)
Title of host publication2006 IEEE International Ultrasonics Symposium, IUS
Number of pages4
StatePublished - 2006

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117

ASJC Scopus subject areas

  • Acoustics and Ultrasonics


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