RF Bearing Estimation in Wireless Sensor Networks
Author
Keywords
Abstract

This paper introduces a novel method for bearing estimation based on a rotating antenna generating a Doppler shifted RF signal. The small frequency change can be measured even on low cost resource constrained nodes using a radio interferometric technique introduced previously. Measuring the Doppler shift at two known locations provides a bearing estimate to the rotating node. An alternative approach employing a switched antenna array is proposed that provides improved robustness by avoiding moving parts.

Year of Conference
2009
Conference Name
Government Microcircuit Application and Critical Technology Conference (GOMACTech 09)
Date Published
03/2009
Conference Location
Orlando, FL
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