Results 151 to 160 of about 1,454,307 (196)

Overtriage and Undertriage of Children Presenting to the Emergency Department for Behavioral Health.

JAMA Netw Open
Hoffmann JA, Foster AA, Rojas CR, Otto S, Olsen CS, Meeks HD, Denicolo K, Janssen A, Grupp-Phelan J, Alpern ER, PECARN Registry Study Group.   +10 more
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Time of Arrival and Angle of Arrival Estimation Algorithm in Dense Multipath

IEEE Transactions on Signal Processing, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nuriel Rogel, Dan Raphaeli, Oded Bialer
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Time of Arrival Operator

Canadian Journal of Physics, 1971
The problem of finding proper quantal operators for the time of arrival, when the source is at infinite distance from the detector, is investigated. It is shown that at least two Hermitian operators can be constructed which, in the Hilbert space of positive energy spectrum, are self-adjoint.
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Time of arrival and Time Sum of arrival based NLOS identification and localization

2012 IEEE 14th International Conference on Communication Technology, 2012
Non-Line of Sight (NLOS) error due to the blockage of direct paths has been considered as the major problem in the wireless localization. Therefore, this paper studies the influence on different algorithms caused by the same NLOS error in order to identify LOS base stations (BS) from NLOS BS. Specifically, Time of Arrival (TOA) based algorithm and Time
null Zhilong Zheng, null Jingyu Hua, null Yuan Wu, null Hao Wen, null Limin Meng   +4 more
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Space-time localization using times of arrival

2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2011
We provide a computationally efficient framework for utilizing Time of Arrival (ToA) sensors to localize multiple events in close proximity in space and time. Conventional ToA-based localization algorithms are typically designed for single events. Na¨ive approaches for associating ToAs with events and then applying a conventional localization algorithm
Sriram Venkateswaran, Upamanyu Madhow
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Time-of-arrival photoelectron correlator

Review of Scientific Instruments, 1987
A photoelectron correlator based on the measurement of the joint probability distribution function in the arrival times of eight stop pulses following a single start pulse is described. This correlator has a measurement interval of 5 μs and delay time resolution of 2.5 ns.
H. S. Dhadwal, Benjamin Chu, Renliang Xu
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Time reversal of SOFAR arrivals

The Journal of the Acoustical Society of America, 1974
Ray theory techniques are used to investigate a time-reversal phenomenon seen during the KIWI-ONE (Phase II) propagation experiment. Shots detonated along a track between New Zealand and South America were received by a deep suspended hydrophone. For ranges less than 3000 km, the standard SOFAR energy crescendo and abrupt termination is apparent, but ...
D. R. Del Balzo, W. B. Moseley
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Time-of-Arrival Measurements

2018
For a radiolocation system the position of an object is determined using some characteristic of the radio frequency signal. These characteristics could include the signal strength, the signal phase (for angle of arrival measurements) or the propagation time-of-flight (TOF) from the transmitter to the receive.
Ian Sharp, Kegen Yu
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Intelligent time of arrival estimation

2011 IEEE Forum on Integrated and Sustainable Transportation Systems, 2011
Traditional time-of-arrival estimation techniques are often used in advanced transportation systems such as in-car navigation systems and fleet management systems. These techniques tend to neglect certain categories of context when estimating a vehicle's time-of-arrival at a given destination. Particularly important categories of such neglected context
Derek Fagan, Rene Meier
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