Reducing the complexity of orthogonal code based synthetic aperture ultrasound systems

Ming Yang, Siyuan Wei, Chaitali Chakrabarti

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

Abstract

In this paper, we propose several techniques to reduce the computation complexity of orthogonal chirp and orthogonal Golay code based synthetic aperture ultrasound systems. First, we minimize the complexity in terms of number of effective multiplications by choosing the system parameters for a specified SNR gain. The proposed method helps in reducing the complexity by about 20×. Next, we consider a system that compensates for body motion. We reduce the complexity of motion compensation first by doing the calculations in polar domain, and second, by making use of the correlation in motion velocity field in a small neighborhood. These approximations reduce the computation complexity by 3000× with minimal performance penalty.

Original languageEnglish (US)
Title of host publicationProceedings - 2012 IEEE Workshop on Signal Processing Systems, SiPS 2012
Pages270-275
Number of pages6
DOIs
StatePublished - Dec 1 2012
Event2012 IEEE Workshop on Signal Processing Systems, SiPS 2012 - Quebec City, QC, Canada
Duration: Oct 17 2012Oct 19 2012

Publication series

NameIEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation
ISSN (Print)1520-6130

Other

Other2012 IEEE Workshop on Signal Processing Systems, SiPS 2012
CountryCanada
CityQuebec City, QC
Period10/17/1210/19/12

Keywords

  • Chirp
  • Golay code
  • Motion compensation
  • Orthogonal coded excitation
  • Synthetic aperture ultrasound

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Applied Mathematics
  • Hardware and Architecture

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