{"title":"Optimal Center-Frequency Estimation for Back-Scattered Ultrasound Pulses","authors":"R. K. Bahr, J. Bucklew, S. Flax","doi":"10.1109/T-SU.1985.31669","DOIUrl":null,"url":null,"abstract":"Absfmcf-Bounds on the accuracy of estimates of the center frequency of an ultrasound signal are considered. In particular the Cramer-Rao lower bound to the variance of any unbiased estimatnr is calculated. This lower bound is then compared with a simple zero-counting method. An example utilizing typical ultrasound parameters is worked. It is shown that this easily computable estimator performs surprisingly well.","PeriodicalId":371797,"journal":{"name":"IEEE Transactions on Sonics and Ultrasonics","volume":"107 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1985-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Sonics and Ultrasonics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/T-SU.1985.31669","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
Absfmcf-Bounds on the accuracy of estimates of the center frequency of an ultrasound signal are considered. In particular the Cramer-Rao lower bound to the variance of any unbiased estimatnr is calculated. This lower bound is then compared with a simple zero-counting method. An example utilizing typical ultrasound parameters is worked. It is shown that this easily computable estimator performs surprisingly well.
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