Study of Passive Chipless IR-UWB Indoor Positioning Based on Time-of-Arrival and Band-Notch
关键词:
Band-notch, indoor positioning, IR-UWB, TOA摘要
In the paper, a passive and chipless IR-UWB indoor positioning system is proposed that follows the criteria of spectral and temporal joint identification. In the scenario of a 2D positioning, the system is coordinated by three anchors; a node can then be positioned by recognizing the pulse’s time-of-arrival (TOA) and the pulse’s band-notch in its backscattered spectrum. The model of the positioning system is established and the numerical analysis is committed in terms of a conceived positioning example. Results validate the system that the positioning is accurate, and the accuracy can be further improved by calibrating the value of TOA through the time offset made by the pulses backscattered by the anchor with and without band-notch, respectively.
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