{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T19:30:18Z","timestamp":1768419018701,"version":"3.49.0"},"reference-count":22,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2014,11,25]],"date-time":"2014-11-25T00:00:00Z","timestamp":1416873600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11174205"],"award-info":[{"award-number":["11174205"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002338","name":"Ministry of Education of the People's Republic of China","doi-asserted-by":"publisher","award":["NCET-12-0357"],"award-info":[{"award-number":["NCET-12-0357"]}],"id":[{"id":"10.13039\/501100002338","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002338","name":"Ministry of Education of the People's Republic of China","doi-asserted-by":"publisher","award":["SRFDP-20120073110021"],"award-info":[{"award-number":["SRFDP-20120073110021"]}],"id":[{"id":"10.13039\/501100002338","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/s141222261","type":"journal-article","created":{"date-parts":[[2014,11,25]],"date-time":"2014-11-25T11:01:31Z","timestamp":1416913291000},"page":"22261-22273","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["An Improved Performance Frequency Estimation Algorithm for Passive Wireless SAW Resonant Sensors"],"prefix":"10.3390","volume":"14","author":[{"given":"Boquan","family":"Liu","sequence":"first","affiliation":[{"name":"School of Electronic Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenrui","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Electronic Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaojun","family":"Ji","sequence":"additional","affiliation":[{"name":"School of Electronic Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Electronic Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"Han","sequence":"additional","affiliation":[{"name":"School of Electronic Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2014,11,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"055001","DOI":"10.1063\/1.4705728","article-title":"Remote vibration measurement: A wireless passive surface acoustic wave resonator fast probing strategy","volume":"83","author":"Friedt","year":"2012","journal-title":"Rev. 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