Results 161 to 170 of about 12,995 (200)

Hemodynamic Characterization of Peripheral Arterio-Venous Malformations Using Rapid Contrast-Enhanced MR Imaging: An In Vitro and In Vivo Study. [PDF]

Ann Biomed Eng
Calastra CG, Bono M, Granada AB, Tuleja A, Bernhard SM, Diaz-Zuccarini V, Balabani S, Obrist D, von Tengg-Kobligk H, Jung B.   +9 more
europepmc   +1 more source

5G High-Precision Positioning in GNSS-Denied Environments Using a Positional Encoding-Enhanced Deep Residual Network. [PDF]

Sensors (Basel)
Shen JM, Chen HM, Li H, Lin S, Wang S.
europepmc   +1 more source

Wireless sensor network positioning technology based on improved sampling box and fuzzy reasoning. [PDF]

Sci Rep
Dan N, Zhao L, Pan W, Cai Y.
europepmc   +1 more source

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Pulsar navigation using time of arrival (TOA) and time differential TOA (TDTOA)

Acta Astronautica, 2018
Abstract Pulsar navigation is a novel autonomous navigation method for deep-space missions. The pulsar navigation method using the time of arrival (TOA) determines the absolute position of the spacecraft. However, its accuracy is greatly affected by system errors, including the ephemeris error of the pulsar and the satellite-borne clock error.
Ning Xiaolin, Yang Yuqing, Gui Mingzhen, Wu Weiren, Fang Jiancheng, Liu Gang   +5 more
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Time of arrival (TOA)-based direct location method

2015 16th International Radar Symposium (IRS), 2015
The presented direct location method computes the 3D position of an object using exactly four time-of-arrival (TOA) measurements, i.e. range measurements, to four reference points or stations. This operation is also commonly known as multilateration. Traditionally, this problem can also be solved using three TOA measurements to three reference stations,
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Times of arrival (TOA) of signals in the Kerr-MOG black hole

General Relativity and Gravitation, 2020
This paper studies the effect of frame dragging on the difference of times of arrival of signals coming from a variable pulsar and passing nearby a rotating black hole in the scalar-tensor-vector-gravity alternative theory due to Moffat. It may be used to constrain an additional parameter that theory contains with respect to ordinary general relativity.
G. Y. Tuleganova, R. N. Izmailov, R. Kh. Karimov, A. A. Potapov, K. K. Nandi   +4 more
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Estimation of Channel State Information (CSI) in Cell-Free Massive MIMO Based on Time of Arrival (ToA)

Wireless Personal Communications, 2020
Cell-free massive multiple input multiple output (MIMO) comprises a large number of distributed single antenna access points (APs) connected to a network controller through backhaul. Each user is served by neighbouring APs simultaneously. Cell-free Massive MIMO provides decent throughput and coverage improvement as compared to a small-cell.
Aqiel N. Almamori, Seshadri Mohan
openaire   +1 more source