Title

A 915 Mhz Saw Sensor Correlator System

Keywords

Code-division multiple-access (CDMA); correlator; interrogator; orthogonal frequency coding (OFC); passive; sensor; spread spectrum; surface-acoustic-wave (SAW); wireless

Abstract

Previous work has been presented on passive wireless surface-acoustic-wave (SAW) sensors using the orthogonal frequency coding (OFC) technique ( Malocha , Proc. Int. Soc. Opt. Eng. (SPIE), Aug. 23-27, 2004, vol. 2, pp. 1082-1085), Pavlina , Proc. IEEE Int. Conf. RFID, 2009, pp. 110-115). This paper will present a SAW sensor correlator system and its key operational parameters. Description of the radio frequency (RF) transceiver system and the OFC SAW temperature sensors is provided for parameter characterization. The system is based on a software radio approach and an analysis of the analog-to-digital converter (ADC) parameters and receiver noise in temperature extraction is presented. Initial experimental results for a four-sensor system operating over a 280° range are given. © 2011 IEEE.

Publication Date

11-9-2011

Publication Title

IEEE Sensors Journal

Volume

11

Issue

12

Number of Pages

3426-3432

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/JSEN.2011.2159856

Socpus ID

80455137054 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80455137054

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