Results 131 to 140 of about 2,352 (176)
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.
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Wireless sensor network positioning technology based on improved sampling box and fuzzy reasoning. [PDF]
Sci RepDan N, Zhao L, Pan W, Cai Y.
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Unique Characteristics of Pulse-Echo Sensing Systems for Ultrasonic Immersion Testing in Harsh Environments. [PDF]
Sensors (Basel)Sha G +3 more
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Pulsar navigation using time of arrival (TOA) and time differential TOA (TDTOA)
Acta Astronautica, 2018Abstract 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.
Gui Mingzhen +2 more
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Time of arrival (TOA)-based direct location method
2015 16th International Radar Symposium (IRS), 2015The 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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Improvement in estimation of time of arrival (TOA) from timing advance (TA)
ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384), 2002Wireless systems reporting TOA (time of arrival), the propagation time from the mobile station (MS) to the base station (BS), may use this information to assist with automatic location identification (ALI). The TA (timing advance), used in TDMA systems, may be used as an approximation for TOA.
G.P. Yost, S. Panchapakesan
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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
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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
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Simulation of Lightning Flash in Time of Arrival (TOA) Method by Using Three Broadband Antennas
2011 UKSim 5th European Symposium on Computer Modeling and Simulation, 2011Various methods are used to locate cloud-to-ground lightning flash. The accuracy of the methods depends on the number of sensor stations, station topology, mathematical model adopted for the analyses, and type of measuring equipment. For a single station with the configuration of short baseline in a measuring system, the accuracy analysis is mostly ...
Saeed Vahabi Mashak +2 more
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2022
<p>Coronal mass ejections are one of the most significant drivers of space weather. The ToA predictions along with the Arrival speed of the CMEs are one of the crucial pieces of information for preparing for the possible geomagnetic storms.
Ajay Tiwari +6 more
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<p>Coronal mass ejections are one of the most significant drivers of space weather. The ToA predictions along with the Arrival speed of the CMEs are one of the crucial pieces of information for preparing for the possible geomagnetic storms.
Ajay Tiwari +6 more
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An underwater sensor network localization algorithm based on Time-of-Arrivals (TOAs)
2013 Ninth International Conference on Natural Computation (ICNC), 2013The underwater sensor network localization algorithm is one of the very important steps in the underwater sensor network initialization process. Due to the deployment of environmental constraints, the underwater sensor node can only be indirectly localized by calculation.
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