Calibration of Passive UHF RFID Tags Using Neural Networks to Measure Soil Moisture

<div>All dataset collected. Red dots are from tag number 81, green dots are from tag number 07, and blue dots are from tag number 16. (a) Reference moisture plotted against RSSI signal and I/Q channel information. (b) Projection of data on reference moisture plotted against RSSI.</div>

Journal of Sensors

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Figure 10

Figure 10: Calibration of Passive UHF RFID Tags Using Neural Networks to Measure Soil Moisture 