A simple method for speckle-reduced Doppler spectrogram

Author

Guo, Zhenyu ; Wang, Shipu ; Duyand, L.-G. ; Loew, Murray

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., George Washington Univ., Washington, DC, USA

Volume

2

fYear

1999

fDate

10/1/1999 12:00:00 AM

Abstract

To reduce the Doppler speckles, a windowed short-time auto-correlation technique was proposed to estimate the Doppler spectrogram. This technique reduces the Doppler spectral variations by windowing its autocorrelation function with a Gaussian window before Fourier transform. With simulated signals, it was showed that this technique is a promising one for Doppler speckles reduction

Keywords

Doppler measurement; Fourier transforms; acoustic correlation; biomedical ultrasonics; blood flow measurement; medical signal processing; speckle; spectral analysis; Doppler spectrogram; Fourier transform; Gaussian window; blood flow signals; carotid artery; speckle reduction; spectral variations; windowed short-time autocorrelation technique; Autocorrelation; Biomedical engineering; Cardiovascular diseases; Data mining; Fourier transforms; Laboratories; Pins; Signal analysis; Spectrogram; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.804135

Filename

804135