Title :
Pulse compression ultrasound for minimization of transmitted peak power
Author :
Welch, Laurence R.
Author_Institution :
Central Lab. for Imaging Res., Connecticut Univ., Storrs, CT, USA
Abstract :
Spread spectrum pulse compression can be used as a method for reducing peak power so that it is within the bounds of safety guidelines set by the American Institute of Ultrasonic Measurements (AIUM). Pulse compression accomplishes this by implementing a longer length transmitted pulse of lower amplitude while maintaining the same signal gain, resolution, and signal-to-noise ratios. Here, correlation algorithms for implementing such a subsystem are described, as well as computer simulation results for methods that reduce correlation sidelobe levels resulting from that process
Keywords :
acoustic signal processing; biomedical ultrasonics; safety; computer simulation; correlation algorithms; correlation sidelobe levels; longer length transmitted pulse; medical diagnostic ultrasound safety; pulse compression ultrasound; resolution; safety guidelines; signal gain; signal-to-noise ratio; spread spectrum pulse compression; transmitted peak power minimization; Guidelines; Power measurement; Pulse compression methods; Pulse measurements; Safety; Signal resolution; Signal to noise ratio; Spread spectrum communication; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Bioengineering Conference, 1994., Proceedings of the 1994 20th Annual Northeast
Conference_Location :
Springfield, MA
Print_ISBN :
0-7803-1930-3
DOI :
10.1109/NEBC.1994.305166
