Quantitative comparison between PW-PSM and PW-TSM Doppler systems

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A simulation-based quantitative comparison between pulsed-wave (PW) Doppler systems using the conventional phase-shift measurement (PSM) technique and the newer time-shift measurement (TSM) technique is presented. A PSM system applying an autocorrelator is compared with a TSM system. The performances of the two systems are compared from zero velocity up to a velocity where detection is no longer possible. With increasing velocity, the coherence between consecutive received signals decreases which eventually results in detection of random peaks with TSM. This is illustrated by showing the relative amount of incorrect detections as a function of velocity. Also, the variance (PW-PSM) and the cross-correlation coefficient (PW-TSM) are found
Original languageEnglish
Title of host publicationIEEE Ultrasonics Symposium Proceedings
VolumeVolume 2
Publication date1991
Publication statusPublished - 1991
Event1991 IEEE Ultrasonics Symposium - Orlando, FL, United States
Duration: 8 Dec 199111 Dec 1991


Conference1991 IEEE Ultrasonics Symposium
CountryUnited States
CityOrlando, FL
Internet address

Bibliographical note

Copyright: 1991 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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