Results 51 to 60 of about 309,361 (185)

Time-of-arrival lightning activity location system [PDF]

, 1975
System fixes location of charge buildup in clouds.
Lennon, C. L.
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Comment on "Measurement of time of arrival in quantum mechanics"

, 2000
The analysis of the model quantum clocks proposed by Aharonov et al. [Phys. Rev. A 57 (1998) 4130 - quant-ph/9709031] requires considering evanescent components, previously ignored.
A. D. Baute, A. D. Baute, C. L. Hammer, G. R. Allcock, I. L. Egusquiza, I. L. Egusquiza, J. G. Muga, J. G. Muga, J. Kijowski, Y. Aharonov   +9 more
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The quality of pre-announcement communication and the accuracy of estimated arrival time in critically ill patients, a prospective observational study

BMC Emergency Medicine, 2022
Background Efficient communication between (helicopter) emergency medical services ((H)EMS) and healthcare professionals in the emergency department (ED) is essential to facilitate appropriate team mobilization and preparation for critically ill patients.
Michelle Maris, Sivera A. A. Berben, Wouter Verhoef, Pierre van Grunsven, Edward C. T. H. Tan   +4 more
doaj   +1 more source

The solution to the problem of time in quantum gravity also solves the time of arrival problem in quantum mechanics

New Journal of Physics, 2022
We introduced with coauthors some years ago a solution to the problem of time in quantum gravity which consists in formulating the quantum theory in terms of real clocks.
Rodolfo Gambini, Jorge Pullin
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Direct Position Determination of Multiple Radio Signals

EURASIP Journal on Advances in Signal Processing, 2005
The most common methods for position determination of radio signal emitters such as communications or radar transmitters are based on measuring a specified parameter such as angle of arrival (AOA) or time of arrival (TOA) of the signal.
Weiss Anthony J, Amar Alon
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Robust Kalman Filter Algorithm Based on Generalized Correntropy for Ultra-Wideband Ranging in Industrial Environment

IEEE Access, 2019
The performance of time-of-arrival (TOA)-based ranging using ultra-wideband is greatly declined in the industrial environment since the metallic obstacles cause severe non-line-of-sight (NLOS) and result in huge ranging measurement errors.
Fuqiang Ma, Jie He, Xiaotong Zhang
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Self-Calibration for the Time Difference of Arrival Positioning

Sensors, 2020
The time-difference-of-arrival (TDOA) self-calibration is an important topic for many applications, such as indoor navigation. One of the most common methods is to perform nonlinear optimization.
Juri Sidorenko, Volker Schatz, Dimitri Bulatov, Norbert Scherer-Negenborn, Michael Arens, Urs Hugentobler   +5 more
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Atomic time-of-arrival measurements with a laser of finite beam width

, 2003
A natural approach to measure the time of arrival of an atom at a spatial region is to illuminate this region with a laser and detect the first fluorescence photons produced by the excitation of the atom and subsequent decay.
Aharonov Y, Allcock G R, Baute A D, Baute A D, Bracken A J, Carmichael H, Dalibard J, Damborenea J A, G C Hegerfeldt, Galapon E A, Halliwell J J, Hegerfeldt G C, Hegerfeldt G C, Hegerfeldt G C, I L Egusquiza, J A Damborenea, J G Muga, Kalotas T M, Muga J G, Muga J G, Pauli W, Plenio M B, Werner R   +22 more
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Fast Joint Estimation of Time of Arrival and Angle of Arrival in Complex Multipath Environment Using OFDM

IEEE Access, 2018
Joint time of arrival (TOA) and angle of arrival (AOA) estimation based on a uniform circle array (UCA) involves problems, including high computational complexity in the multi-dimensional spectral search method and lack of applicability in coherent ...
Haiyun Xu, Yankui Zhang, Bin Ba, Daming Wang, Xiangzhi Li   +4 more
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Time of arrival through interacting environments: Tunneling processes

, 2000
We discuss the propagation of wave packets through interacting environments. Such environments generally modify the dispersion relation or shape of the wave function.
A.I. Kirillov, A.M. Steinberg, A.M. Steinberg, Atsushi Horikoshi, B.E. Schaefer, C. Bracher, C.R. Leavens, E. Nelson, E.H. Hauge, E.P. Wigner, Etsuko Nakamura, G. Amelino-Camelia, J.G. Muga, J.G. Muga, J.G. Muga, J.I. Latorre, J.J. Halliwell, J.R. Hiller, K. Imafuku, K. Imafuku, Ken-Ichi Aoki, L.J. Garay, L.V. Hau, M. Büttiker, M. Hino, M. Tanaka, M.K. Oberthaler, N. Grot, N. Yamada, P. Kochanski, R. Giannitrapani, R. Landauer, R.S. Dumont, R.Y. Chiao, S. Brouard, V. Delgado, V.M. de Aquino, W.R. McKinnon, Y. Aharonov, Y. Aharonov, Y. Nakamura, Y.E. Lozovik   +41 more
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