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This paper proposes an improved Time-of-Flight (ToF) estimation algorithm that allows sub-mm position estimation and reduces the power consumption of the receiver. The former is ensured by employing a multicarrier ultra-wide band (UWB) signal. The latter is achieved through sub-Nyquist sampling allowing to decrease the rate of the analog to digital converter (AID) and digital computational cost. This...
A sub-mm ranging system, which estimates the time of flight of a RF signal between two nodes using Time of Arrival (ToA) estimation, is possible according to maximum likelihood estimator simulations and theoretical bounds on ToA estimation. In this paper we propose a frequency domain based ToA estimator for an indoor ranging system which is broken into 3 computational steps towards an efficiently...
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