On the efficient estimation of blood velocities.
Pulsed wave (PW) Doppler ultrasound systems are commonly used to examine blood flow dynamics and the technique plays a very important role in numerous diagnostic applications. Commonly, narrow-band PW systems estimate the blood velocity using an autocorrelation-based estimator. Herein, we examine a recently proposed hybrid frequency estimator, and via extensive numerical simulations using simulated blood scatterers show the achievable performance gain of this method as compared to the traditional approach.
Zhang
Zhuo
Z
The Centre of Digital Signal Processing, Cardiff School of Engineering, Cardiff University, Cardiff CF24 0YF, UK.
Jakobsson
Andreas
A
Macleod
Malcolm
M
Chambers
Jonathon
J