Results 1 to 10 of about 1,667 (165)

Time Difference of Arrival (TDoA) Localization Combining Weighted Least Squares and Firefly Algorithm [PDF]

open access: yesSensors, 2019
Time difference of arrival (TDoA) based on a group of sensor nodes with known locations has been widely used to locate targets. Two-step weighted least squares (TSWLS), constrained weighted least squares (CWLS), and Newton−Raphson (NR) iteration ...
Peng Wu   +5 more
doaj   +7 more sources

Optimal Sensor Formation for 3D Cooperative Localization of AUVs Using Time Difference of Arrival (TDOA) Method. [PDF]

open access: yesSensors (Basel), 2018
The cooperative localization of submerged autonomous underwater vehicles (AUVs) using the Time Difference of Arrival (TDOA) measurements of surface AUV sensors is an effective method for many applications of AUVs. Proper positioning of the sensors to maximize the observability of the AUVs is very critical for cooperative localization.
Bo X, Razzaqi AA, Wang X.
europepmc   +6 more sources

Robust Time-Difference-of-Arrival (TDOA) Localization Using Weighted Least Squares with Cone Tangent Plane Constraint. [PDF]

open access: yesSensors (Basel), 2018
Finding the position of a radiative source based on time-difference-of-arrival (TDOA) measurements from spatially separated receivers has been widely applied in sonar, radar, mobile communications and sensor networks. For the nonlinear model in the process of positioning, Taylor series and other novel methods are proposed.
Jin B, Xu X, Zhang T.
europepmc   +6 more sources

Underwater Transmitter Localization Based on TDOA and FDOA Considering the Unknown Time-Varying Emission Frequency

open access: yesJournal of Marine Science and Engineering, 2023
This article considers locating a noncooperative underwater transmitter utilizing multiple receivers, such that each receiver can measure the frequency difference of arrival (FDOA) as well as the time difference of arrival (TDOA) of the transmitter’s ...
Jonghoek Kim
doaj   +3 more sources

Multi-Source Weighted Localization Based on Cascaded DOA-TDOA [PDF]

open access: yesSensors
Time Difference of Arrival (TDOA)-based localization is widely used for its stability and high accuracy. However, in multi-source scenarios, TDOA measurements from multiple sources become entangled, making it difficult to separate and correctly associate
Jinshen Fang   +3 more
doaj   +2 more sources

Self-Calibration for the Time Difference of Arrival Positioning

open access: yesSensors, 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   +5 more
doaj   +3 more sources

High-Precision Time Difference of Arrival Estimation Method Based on Phase Measurement

open access: yesRemote Sensing
In unmanned aerial vehicle (UAV)-based time difference of arrival (TDOA) positioning technique, baselines are limited due to communication constraints. In this case, the accuracy is highly sensitive to the TDOA measurements’ error. This article primarily
Jihao Xin   +7 more
doaj   +3 more sources

Performance evaluation on extended neural network localization algorithm on 5 g new radio technology [PDF]

open access: yesScientific Reports
With the rapid growth of fifth-generation (5G) networks, there is an increasing demand for high-precision localisation, achieving which is a major challenge in real-time applications in dynamic and noisy environments.
Deebalakshmi R   +2 more
doaj   +2 more sources

Joint TDOA, FDOA and PDOA Localization Approaches and Performance Analysis

open access: yesRemote Sensing, 2023
Multi-station joint localization has important practical significance. In this paper, phase difference of arrival (PDOA) information is introduced into the joint time difference of arrival (TDOA) and frequency difference of arrival (FDOA) localization ...
Jinzhou Li   +7 more
doaj   +1 more source

Fast TDOA and FDOA Estimation for Coherent Pulse Signals

open access: yesInternational Journal of Antennas and Propagation, 2022
Time difference of arrival (TDOA) and frequency difference of arrival (FDOA) have been widely used for localizing temporally continuous signals passively.
Yan Liu, Fucheng Guo
doaj   +1 more source

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