Contact Tracing Coronavirus COVID-19 - Calibration Method and Proximity Accuracy - (Q4780)
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scholarly article published in April 2020
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| English |
Contact Tracing Coronavirus COVID-19 - Calibration Method and Proximity Accuracy -
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scholarly article published in April 2020
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Statements
With Bluetooth 5.1, a new standard was released in 2019, which will make it possible to carry out a so-called direction finding. Two antennas will be controlled phase-shifted, so that a mini-phased array can be realized. This will improve the proximity estimation. However, these chips are not yet implemented in the current smart phones and are therefore not available.
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Figure 1: Receiving power depending on the distance between transmitter and receiver
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April 2020
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