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4. Signal processing
Measurement of the radio-frequency communication channel, including echoes induced by cooperative targets, provides a sequence of complex values, classically named I and Q for the identity and quadrature quantities. These quantities are classically converted into modulus
and phase φ = arctan(Q/I) to extract information about the signal's physical properties. As we shall see in the properties of materials used in piezoelectric substrates (§
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Signal processing
Bibliography
Conferences
IEEE Frequency Control Symposium IFCS
http://ieee-uffc.org/publications/intérnational-frequency-control-symposium-proceedings/
European Frequeny and Time Forum EFTF
...Newspapers
IEEE Sensors
https://ieee-sensors.org/sensors-journal/
IEEE Trans. Ultrasonics and Frequency Control
http://ieee-uffc.org/publications/transactions-on-uffc/
MDPI Sensors...
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