Title :
A new wideband power spectral estimator for blood velocity estimation
Author :
Tie, Liu ; Shangkai, Gao
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
The conventional Doppler ultrasound spectral estimation method is regarded as a narrowband estimator (NBE). In this paper, a new wideband power spectral estimation method (WEE) is presented, which combines spectral estimation with phase detection by the time-domain cross-correlation method (CCM). Its superiority to that of the NBE has been shown by the computer simulation results
Keywords :
Doppler measurement; acoustic correlation; biomedical ultrasonics; blood flow measurement; medical signal processing; spectral analysis; time-domain analysis; Doppler ultrasound spectral estimation method; blood velocity estimation; computer simulation results; phase detection; spectral estimation; time-domain cross-correlation method; wideband power spectral estimator; Bandwidth; Blood; Delay effects; Frequency estimation; Narrowband; Phase detection; Phase estimation; Time domain analysis; Ultrasonic imaging; Wideband;
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
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.804201
