We propose a method to track a periodic RF transmitter using a mobile receiver. By estimating the difference in time-of-arrival (TOA) of the periodic messages at different locations along its trajectory, the receiver is able to estimate the transmitter location. A major challenge lies in separating the time offset due to receiver movement from the time offset due to local oscillator (LO) drift....

A time of arrival (TOA) operator that is conjugate with the system Hamiltonian was constructed by Galapon without canonical quantization in (J. Math. Phys. 45:3180–3215, 2004). The expressed as an infinite series but only leading term investigated which shown to be equal Weyl-quantized TOA-operator for entire analytic potentials. In this paper, we give a full account said explicitly solving all...

Abstract This paper presents the advantages of using a wideband spectrum adopting multi-carrier to improve targets localization within simulated indoor environment Time Arrival (TOA) technique. The study investigates effect various bandwidths and different number carriers on accuracy. Also, considers influence transmitters’ positions in line-of-sight (LOS) non-LOS propagation scenarios. It was ...

Device or node localization is one of the important issues to be resolved in 5G Utra-Dense network. Accurate measurement techniques using conventional Time of Arrival (ToA), Time Difference of Arrival (TDoA), Angle of Arrival (AoA) and Received Signal Strength Indicator (RSSI) can be adopted to enhance localization accuracy. However, with the introduction of MIMO to increase spectral efficiency...

Because of the good penetration into many common materials and inherent fine resolution, Ultra­ Wideband (UWB) signals are widely used in remote ranging and positioning applications. On the other hand, because of the high sampling rate, coherent Time of Arrival (TOA) estimation algorithms are not practical for low cost, low complexity UWB systems. In order to improve...

High-resolution time of arrival (TOA) estimation techniques have great promise for the high range resolution required in recently developed radar systems. A widely known super-resolution TOA estimation algorithm for such applications, the multiple-signal classification (MUSIC) in the frequency domain, has been proposed, which exploits an orthogonal relationship between signal and noise eigenvec...

The objective of this paper is to determine the potentialities of an optimal detection scheme within the framework of subscriber location. The use of a Generalized Likelihood Ratio Test (GLRT) for detecting the first arriving path from the estimated channel observations in a multipath environment in severe NLOS conditions is described, and a high-resolution estimation algorithm for the time of ...

Objective To describe a collaboration with the Johns Hopkins Applied Physics Laboratory (JHU APL), the North Carolina Division of Public Health (NC DPH), and the UNC Department of Emergency Medicine Carolina Center for Health Informatics (CCHI) to implement time-of-arrival analysis (TOA) for hospital emergency department (ED) data in NC DETECT to identify clusters of ED visits for which there i...

The estimation of the time of arrival (TOA) and/or time of flight of the ultrasonic echoes is essential in ultrasonic nondestructive evaluation. In this paper, matching pursuit method has been used to analyze noisy ultrasonic pulse-echo wavelet and decompose the noisy pulse-echo wavelet into unit-norm vectors. The error ratio of the mean square is used to monitor the acceptability of the unit-n...

In this work, a system scheme is proposed for tracking a radio emitting target moving in two-dimensional space. The localization is based on the use of biased time-of-arrival (TOA) measurements obtained at two asynchronous receivers, each equipped with two closely spaced antennas. By exploiting the multi-antenna configuration and using all the TOA measurements up to current time step, the relat...