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Wireless communication using ultrasound in air with parallel OOK channels
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
The use of airborne ultrasonic transducers for wireless communication was demonstrated. The work used capacitive ultrasonic transducers to transmit coded binary signals through parallel air channels. On-Off Keying modulation ...
Vehicle speed estimation using GPS/RISS (Reduced Inertial Sensor System)
(Signals and Systems Conference (ISSC 2013), 24th IET Irish, 2013-06)
Land vehicle speed is usually measured by wheel speed or GPS. While these methods are adequate for some purposes, there are some drawbacks. Wheel speed may differ greatly from vehicle speed due to tyre slip. In addition, ...