Errors of passive wireless remote SAW sensing employing differential phase measurement

被引：0

作者：

Shmaliy, YS ^{[1
]}

Manzano, OI ^{[1
]}

Lucio, AA ^{[1
]}

机构：

[1] Univ Guanajuato, FIMEE, Dept Elect, Salamanca 36730, Mexico

来源：

INTERNATIONAL CONFERENCE ON COMPUTING, COMMUNICATIONS AND CONTROL TECHNOLOGIES, VOL 3, PROCEEDINGS | 2004年

关键词：

passive wireless remote SAW sensing; phase errors; error probability;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

A statistical analysis is given of the limiting estimate errors of the time delay (phase difference) between two reflectors of the passive wireless surface acoustic wave (SAW) sensor employing single differential measurement. The estimation is provided in a sense of the maximum likelihood function at the ideal coherent receiver in presence of Gaussian noise. Rigorous and approximate solutions for the mean and mean square errors Along with the error probability for the estimate to exceed a threshold are studied in detail. The plots are applied to evaluate the errors in a wide range of signal-to-noise ratios and thresholds. Practical recommendations for designers of the remote SAW sensor interrogating systems are also given.

引用

页码：315 / 320

页数：6

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