A noise-robust method for passive wireless resonant SAW sensor

被引：6
|
作者：
Liu, Boquan [1 ]
Zeng, Yicheng [2 ]
Tang, Pinghua [2 ]
机构：
[1] Xiangtan Univ, Xiangtan, Peoples R China
[2] Xiangtan Univ, Sch Phys & Optoelect, Xiangtan, Peoples R China
来源：
SENSOR REVIEW | 2016年 / 36卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Sensors; Metrology; FREQUENCY ESTIMATION; PARAMETERS; SINUSOIDS; ALGORITHM; SIGNALS;
D O I：
10.1108/SR-07-2015-0120
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Purpose - This paper aims to propose a noise-robust method to estimate the frequency of the reflective echo to reduce the negative effects of noise and improve the accuracy and resolution of a resonant surface acoustic wave (SAW) sensor. Design/methodology/approach - The proposed approach exploits the singular value decomposition to obtain the frequency information of a SAW response signal and overcome the noise influences. Findings - Compared with the commonly used Fourier transform (FT) method, the accuracy and resolution improvement of the proposed method used in the SAW sensor is validated. Originality/value - The system using the proposed method delivers lesser standard deviation, that is, delivers higher performance than the conventional system using the fast FT method.
引用
收藏
页码：312 / 320
页数：9
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