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Showing 1 to 2 of 2 for “"Ultrasound Infrared"”.
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A Comprehensive Study Of Nonlinear Effects Of Coupling Materials In Ultrasound Infrared Imaging
… for the quality assurance in industry. Sonic Infrared (IR) Imaging technology is a hybrid sensing and imaging technique, in which cracks in an object are caused to become visible in the infrared imaging through frictional heating associated with the application of a short pulse of …
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Indoor Positioning Using Synchronized Ultrasonic OFDMA Signals
… of approximately 40kHz and synchronizes using an infrared signal. The OFDMA scheme allows for a receiver to process the signals from multiple transmitters continuously without the signals interfering with each other. The phases of the signals are measured using Goertzel Filters, allowing for …