DocumentCode :
545282
Title :
FM Doppler ultrasound system
Author :
Pedersen, P.C. ; Wilhjelm, J.E.
Author_Institution :
Dept. of Electrical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609
Volume :
5
fYear :
1992
fDate :
Oct. 29 1992-Nov. 1 1992
Firstpage :
2120
Lastpage :
2121
Abstract :
This paper describes an ultrasound Doppler system utilizing swept frequency (FM) excitation. Both range and velocity data can be obtained from the received signals by means of either of two different signal processing approaches: Frequency (or spectral) Shift Measure­ments (FM-fsm) or Phase Shift Measurements (FM-psm). The unique features of the FM Doppler system are the low peak power, possibility for pre-compensation of attenuation and transducer effects, and — for the FM-fsm processing technique — the absence of aliasing effects.
Keywords :
Doppler effect; Echo cancellers; Frequency modulation; Signal resolution; Ultrasonic imaging; Weight measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris, France
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
Type :
conf
DOI :
10.1109/IEMBS.1992.5762196
Filename :
5762196
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=545282
بازگشت