Results 251 to 260 of about 310,648 (289)

Phase recovery for time of arrival estimation in the presence of interference

2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2015
Time of arrival is a commonly used mechanism for geolocation. In many environments, multipath propagation of RF signals limits accuracy. Wide bandwidths reduce the impact of multipath propagation, but frequently results in interference from other devices. When the bandwidth is assembled from several measured sub-bands, there is an additional difficulty
Kevin Nguyen, David Humphrey, Mark Hedley, Philip Heng Wai Leong   +3 more
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Detection and time-of-arrival estimation of underwater acoustic signals

2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2016
We focus on detection and time-of-arrival (ToA) estimation of underwater acoustic signals of unknown structure. The common practice to use a detection threshold may fail when the assumed channel model is mismatched or when noise transients exist. We propose to detect and evaluate the ToA by labeling samples of observed data as ‘signal’ or ‘noise’. Then,
Diamant, Roee, KASTNER, RYAN CHARLES, Zorzi, Michele   +2 more
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Efficient time of arrival estimation in the presence of multipath propagation

The Journal of the Acoustical Society of America, 2013
Most of acoustical experiments face multipath propagation issues. The times of arrival of different ray paths on a sensor can be very close. To estimate them, high resolution algorithms have been developed. The main drawback of these methods is their need of a full rank spectral matrix of the signals.
Villemin, Guilhem, Fossati, Caroline, Bourennane, Salah   +2 more
openaire   +3 more sources

Time-of-Arrival Estimation in Mobile Tour Guides

2013
In recent years advanced car navigation systems have emerged as a key tool for commuters. For tourists and visitors, analogous mobile tour guides are equally important when exploring urban and outdoor spaces. During the development of a mobile tour guide designed specifically forhikers and cyclists the need for route planning based on individualized ...
Arthur Pitman, Josef Bernhart, Christian Posch, Martin Zambaldi, Markus Zanker   +4 more
openaire   +1 more source

On the bias of pseudolinear estimators for time-of-arrival based localization

2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2017
Closed-form pseudolinear estimators are computationally attractive alternatives to iterative nonlinear techniques. For time-of-arrival (TOA) based localization, several pseudolinear estimators have been proposed such as the least squares calibration (LSC) estimator, the linear least squares (LLS) estimator, and their best linear unbiased estimator ...
Ngoc Hung Nguyen, Kutluyil Dogançay
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Bias free estimation of the variance of time of arrival differences

ICASSP '84. IEEE International Conference on Acoustics, Speech, and Signal Processing, 1985
In the frequency domain estimation of Time of Arrival differences, phase data of the cross-spectrum may show correlation between frequency bins due to either insufficient time-bandwidth product or the use of a nonrectangular window on the input signal samples.
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Data-driven aircraft estimated time of arrival prediction

2015 Annual IEEE Systems Conference (SysCon) Proceedings, 2015
Predicting an aircraft's Estimated Time of Arrival (ETA) while enroute can be a challenging endeavor. The great number of factors that can affect a flight's punctuality range from things well under the pilot's control, such as flight level and cruise airspeed, all the way to environmental circumstances that are generally very hard to predict, such as ...
Christian Strottmann Kern, Ivo Paixao de Medeiros, Takashi Yoneyama   +2 more
openaire   +1 more source

Time-of-arrival estimation for E-OTD location in GERAN

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598), 2002
In this paper, the problem of time-of-arrival (TOA) estimation for E-OTD location in a GSM/EDGE Radio Access Network (GERAN) is described. To increase the number of available bursts for TOA estimation (and therefore increase the accuracy), the mobile can use bursts from all time slots. However, this requires that the TOA estimation algorithm is able to
Sven Fischer, Ari Kangas
openaire   +1 more source

Time-of-Arrival Estimation Based on Information Theoretic Criteria

IEEE Transactions on Signal Processing, 2013
The possibility to accurately localize tags by using wireless techniques is of great importance for several emerging applications in the Internet of Things. Precise ranging can be obtained with ultra wideband (UWB) impulse radio (IR) systems, where short impulses are transmitted, and their time-of-arrival (ToA) is estimated at the receiver.
GIORGETTI, ANDREA, CHIANI, MARCO
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Estimation of Time of Arrival for Rectangular Pulses

IEEE Transactions on Aerospace and Electronic Systems, 1984
We consider the performance of the maximum likelihood estimator (MLE) for the time of arrival of a rectangular pulse in additive white Gaussian noise. Upper and lower bounds are derived for the mean square error. These bounds are tight for both medium and large energy-to-noise ratios.
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