Next Article in Journal
The Simultaneous Electrochemical Detection of Catechol and Hydroquinone with [Cu(Sal-β-Ala)(3,5-DMPz)2]/SWCNTs/GCE
Next Article in Special Issue
A New Z-axis Resonant Micro-Accelerometer Based on Electrostatic Stiffness
Previous Article in Journal
SVANET: A Smart Vehicular Ad Hoc Network for Efficient Data Transmission with Wireless Sensors
Previous Article in Special Issue
Temperature Sensing in Seawater Based on Microfiber Knot Resonator
Article Menu

Export Article

Open AccessArticle
Sensors 2014, 14(12), 22261-22273; doi:10.3390/s141222261

An Improved Performance Frequency Estimation Algorithm for Passive Wireless SAW Resonant Sensors

School of Electronic Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Author to whom correspondence should be addressed.
Received: 23 September 2014 / Revised: 11 November 2014 / Accepted: 13 November 2014 / Published: 25 November 2014
(This article belongs to the Special Issue Resonant Sensors and Sensor Fusion)
View Full-Text   |   Download PDF [1536 KB, uploaded 25 November 2014]   |  


Passive wireless surface acoustic wave (SAW) resonant sensors are suitable for applications in harsh environments. The traditional SAW resonant sensor system requires, however, Fourier transformation (FT) which has a resolution restriction and decreases the accuracy. In order to improve the accuracy and resolution of the measurement, the singular value decomposition (SVD)-based frequency estimation algorithm is applied for wireless SAW resonant sensor responses, which is a combination of a single tone undamped and damped sinusoid signal with the same frequency. Compared with the FT algorithm, the accuracy and the resolution of the method used in the self-developed wireless SAW resonant sensor system are validated. View Full-Text
Keywords: wireless SAW sensors; singular value decomposition; frequency estimation wireless SAW sensors; singular value decomposition; frequency estimation

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, B.; Zhang, C.; Ji, X.; Chen, J.; Han, T. An Improved Performance Frequency Estimation Algorithm for Passive Wireless SAW Resonant Sensors. Sensors 2014, 14, 22261-22273.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top