Title :
Theory and experiment of a new pseudorandom ultrasound Doppler blood flowmeter
Author :
Wan, Mingxi ; Chen, Jinzhi
Author_Institution :
Dept. of Inf. & Control Eng., Xi´´an Jiaotong Univ., China
Abstract :
The signal-to-clutter ratio of a pseudorandom ultrasound Doppler blood flowmeter is defined. The authors also present the signal design, system design, and experimental and clinical results for a new Doppler flowmeter that uses the cross-correlation method and the CW-M (continuous-wave, modulation) compatible mode. It is concluded that this device can suppress the clutter completely and that it possesses high sensitivity and signal-to-noise ratio. The CW-M compatible mode makes the flowmeter very convenient for application in medical research and diagnosis
Keywords :
biological techniques and instruments; biomedical equipment; biomedical ultrasonics; flowmeters; haemodynamics; ultrasonic measurement; CW-M; continuous-wave; cross-correlation method; diagnosis; medical research; modulation; pseudorandom ultrasound Doppler blood flowmeter; Autocorrelation; Blood flow; Correlation; Fluid flow measurement; Pulse measurements; Signal design; Signal resolution; Thyristors; Ultrasonic imaging; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium, 1988. Proceedings., IEEE 1988
Conference_Location :
Chicago, IL
DOI :
10.1109/ULTSYM.1988.49528
