Results 21 to 30 of about 1,667 (165)
A Model on Indoor Localization System Based on the Time Difference Without Synchronization
IEEE Access, 2018 Localization has emerged as an attractive solution to enable new business models that rely on location-based services in wireless networks for communication, sensing, and control. In particular, time difference-of-arrival (TDOA) is one of the widely used
Yuan Xue +4 more
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A Fractional Programming Method for Target Localization in Asynchronous Networks
IEEE Access, 2018 In this paper, we address the target device localization problem in the asynchronous networks. For the purpose of saving power resources, the target device is not synchronized with the anchor nodes, but is only required to listen to the signals ...
Gang Wang, Nirwan Ansari, Youming Li
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Performance Analysis of TDOA and FDOA Estimation for Pulse Signals
International Journal of Antennas and Propagation, 2022 Time difference of arrival (TDOA) and frequency difference of arrival (FDOA) are effective measurements for localizing emitters’ radiating pulse signals, such as radar.
Yan Liu, Fucheng Guo
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Accuracy Analysis in Sensor Networks for Asynchronous Positioning Methods
Sensors, 2019 The accuracy requirements for sensor network positioning have grown over the last few years due to the high precision demanded in activities related with vehicles and robots.
Rubén Álvarez +5 more
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Location errors in time of arrival (TOA) and time difference of arrival (TDOA) systems [PDF]
, 1977 It is shown that the covariance matrix of object location errors is identical for time of arrival (TOA) and time difference of arrival (TDOA) systems if the inverse of the covariance matrix of TOA (TDOA) errors is used as a weighting matrix. Also, with this weighting the location errors statistics do not depend on the particular difference pairs in the
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Location measurement of an object using radio networks for Industry 4.0 applications [PDF]
E3S Web of Conferences, 2021 Indoor positioning methods using radio networks are investigated. Time Difference of Arrival (TDOA) method is studied deeply, and the main problems are revealed.
Fedotov Alexander +4 more
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A Novel Joint TDOA/FDOA Passive Localization Scheme Using Interval Intersection Algorithm
Information, 2021 Due to the large measurement error in the practical non-cooperative scene, the passive localization algorithms based on traditional numerical calculation using time difference of arrival (TDOA) and frequency difference of arrival (FDOA) often have no ...
Lingyu Ai +5 more
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3D TDOA Emitter Localization Using Conic Approximation
Sensors, 2023 This paper develops a new time difference of arrival (TDOA) emitter localization algorithm in the 3D space, employing conic approximations of hyperboloids associated with TDOA measurements. TDOA measurements are first converted to 1D angle of arrival (1D-
Kutluyil Dogancay, Hatem Hmam
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Detecting of Gunshots Direction Using TDOA (Time Difference of Arrival)
Emitor: Jurnal Teknik ElektroIn order to avoid shots being fired in undesirable areas, a device is required that can detect the origin of the shot so that the source of the bullet can be identified. This research was conducted to maintain the security and stability of a region.
Risdilah Mimma Untsa +4 more
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IEEE Access, 2021 In this paper, we investigate the mobile node localization problem in an underwater positioning system using multiple surface beacons, where time synchronization between the surface beacons and underwater mobile nodes is not required. First, we propose a
Feng Liu +3 more
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