27 May 2005 Magnetic sensor nodes for enhanced situational awareness in urban settings
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Military forces conducting urban operations are in need of non-line-of-sight sensor technologies for enhanced situational awareness. Disposable sensors ought to be able to detect and track targets through walls and within rooms in a building and relay that information in real-time to the soldier. We have recently developed magnetic sensor nodes aimed towards low cost, small size, low power consumption, and wireless communication. The current design uses a three-axis thin-film magnetoresistive sensor for low bandwidth B-field monitoring of magnetic targets such as vehicles and weapons carried by personnel. These sensor nodes are battery operated and use IEEE 802.15.4 communication link for control and data transmission. Power consumption during signal acquisition and communication is approximately 300 mW per channel. We will present and discuss node array performance, future node development and sensor fusion concepts.
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Hoke Trammell, Richard Shelby, Kevin Mathis, Yacine Dalichaouch, Sankaran Kumar, "Magnetic sensor nodes for enhanced situational awareness in urban settings", Proc. SPIE 5796, Unattended Ground Sensor Technologies and Applications VII, (27 May 2005); doi: 10.1117/12.604208; https://doi.org/10.1117/12.604208

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