Assessment on wideband and narrowband methods for ultrasonic blood flow measurement

Jinyi Qi, Shangkai Gao, Fusheng Yang

Research output: Contribution to journalArticle

Abstract

The existing methods for ultrasonic blood flow measurement were studied. The pulsed Doppler system and the autocorrelation method are essentially the same narrowband estimation methods with low velocity resolution and probably the aliased spectrum. Three wideband techniques are the time domain crosscorrelation technique, the wideband maximum likelihood estimation method and two-dimensional Fourier transform method, and these techniques can achieve high velocity resolution and low probability of aliasing.

Original languageEnglish (US)
Pages (from-to)255-267
Number of pages13
JournalShengxue Xuebao/Acta Acustica
Volume22
Issue number3
StatePublished - May 1997
Externally publishedYes

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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