Results 221 to 230 of about 142,731 (260)

Robust Self-calibration of Constant Offset Time-difference-of-arrival

ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019
In this paper we study the problem of estimating receiver and sender positions from time-difference-of-arrival measurements, assuming an unknown constant time-difference-of-arrival offset. This problem is relevant for example for repetitive sound events. In this paper it is shown that there are three minimal cases to the problem. One of these (the five
Batstone, K., Flood, G., Beleyur, T., Larsson, V., Goerlitz, H., Oskarsson, M., Aström, K.   +6 more
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The impact of acoustic signal models on time-difference-of-arrival/frequency-difference-of-arrival estimation

The Journal of the Acoustical Society of America, 2007
Much research has been done in the area of estimating time-difference-of-arrival (TDOA) and frequency-difference-of-arrival (FDOA) and their use in locating a radiating source. Early work in this area focused on locating acoustic sources using passive sonar processing.
Mark L. Fowler, Xi Hu
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Compressed time difference of arrival based emitter localization

2015 3rd International Workshop on Compressed Sensing Theory and its Applications to Radar, Sonar and Remote Sensing (CoSeRa), 2015
Utilizing the time differences of arrival of a signal, impinging on a distributed sensor network, is a well known approach for the location estimation of a radio wave emitter. The high sampling rate necessary for a precise positioning implies a huge amount of data exchange between the sensor nodes.
Johannes Schmitz, Rudolf Mathar, Dominik Dorsch   +2 more
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Asynchronous time difference of arrival (ATDOA) method

Pervasive and Mobile Computing, 2015
A new method for a location service in the asynchronous wireless sensor networks is outlined. This method, which is called asynchronous time difference of arrival (ATDOA), enables calculation of the position of a mobile node without knowledge of relative time differences (RTDs) between measuring sensors.
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Passive radar localization by time difference of arrival

MILCOM 2002. Proceedings, 2003
A detailed analysis for the performance of TDOA based passive radar localization systems is provided. The system considered in the analyses consists of four sensors and associated receiver blocks, samplers, and signal processors. Arrival time for the radar pulses is obtained by adaptive thresholding. Cramer-Rao bounds of TOA and TDOA are obtained.
A. Dersan, Y. Tanik
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Indoor localization using ultrasonic time difference of arrival

2013 Proceedings of IEEE Southeastcon, 2013
Indoor environments like those found in mining and firefighting operations are extremely dynamic and Immediately Dangerous to Life and Health (IDLH), requiring Incident Commanders and supervisors to constantly be aware of the location of their personnel. This paper presents a graduate student project to develop, in the span of one semester, a prototype
Shuo Pang, Ricardo Trujillo
openaire   +1 more source

COMPARISON OF QUEUES WITH DIFFERENT DISCRETE-TIME ARRIVAL PROCESSES

Probability in the Engineering and Informational Sciences, 2001
Traveling times in a FIFO-stochastic event graph are compared in increasing convex ordering for different arrival processes. As a special case, a stochastic lower bound is obtained for the sojourn time in a tandem network of FIFO queues with a Markov arrival process.
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Efficient trilateration algorithm using time differences of arrival

Sensors and Actuators A: Physical, 2013
Abstract This work presents a novel hyperbolic algorithm to compute the absolute position of a mobile node (tag) in a Local Positioning System (LPS) based on the transmission of encoded signals from a set of beacons and computing the TDOA (Time Differences of Arrival) at the receiver.
Daniel Ruiz, Jesús Ureña, Juan C. García, Carmen Pérez, José M. Villadangos, Enrique García   +5 more
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Indoor Localization Using 802.11 Time Differences of Arrival

IEEE Transactions on Instrumentation and Measurement, 2016
This paper proposes a novel time-based method for determining the position of an IEEE 802.11g transmitter using multiple mutually synchronized 802.11g receivers. By means of baseband signal processing, the proposed algorithm obtains a high-resolution estimate of the time of arrival (TOA) of the long training sequence symbol at each receiver.
Ahmed Makki, Abubakr Siddig, Mohamed Saad, Joseph R. Cavallaro, Chris J. Bleakley   +4 more
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Array Shape Observability From Time Differences of Arrival

IEEE Transactions on Aerospace and Electronic Systems, 2011
In this paper, we study the observability conditions for the relative position of a set of passive sensors from the measured time differences of arrival (TDOA) of signals from a set of noncooperative sources lying in the same plane. The sources are broadband to measure the TDOA and far enough to consider each source is detected in the same line of ...
C Jauffret, J Barrere, G Chabriel
openaire   +1 more source