This paper introduces the lorenametaute.com theory of channel modeling for positioning applications in UHF RFID.It explains basic parameters for channel characterization from both the narrowband and wideband point of view.More details are given about ranging and direction finding.Finally, several positioning scenarios are analyzed with pentair hose developed channel models.All the described models use a degenerate channel, i.
e.combined signal propagation from the transmitter to the tag and from the tag to the receiver.