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

Table 1

Structure of collected data and stored in the CSV file. Each value is an average of 3 RFID reader/tag communication property measurement.

Field	Field name	Description
1	TIMESTAMP	Date and time of collected sample (unix timestamp)
2	READ_COUNT	Number of responses from the tag in 15 sec. interval
3	AVG_RSSI_I	Average RSSI value for in-phase channel
4	AVG_RSSI_Q	Average RSSI value for quadrature channel
5	AVG_RSSI	RSSI average value
6	AVG_AGC	Reader automatic gain control
7	AVG_ICOUNT	Average number of readings in the I channel
8	AVG_QCOUNT	Average number of readings in the Q channel
9	AVG_QC	Q channel value
10	AVG_QI	I channel value