Results 21 to 30 of about 3,067 (187)

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   +2 more sources

TDOA, Frequency and Phase Offsets Estimation Taking Into Account Carrier Phase of Arrival [PDF]

open access: yesRadioengineering, 2017
This paper deals with estimation of time difference of arrival (TDOA) and phase and frequency offsets between the channels in a receiving system with two distributed time synchronized, but phase and frequency unlocked channels.
M. Janjic, N. Vukmirovic, M. Eric
doaj   +2 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

Time-Difference-of-Arrival (TDoA) Based Wireless Indoor Localization Using an Effective Hybrid Time Synchronization [PDF]

open access: yes, 2019
Wireless indoor localization is a major challenging issue for state-of-the-art technologies and applications which require precise and robust location information. Many restrictions affect the performance of the wireless indoor localization, for instance, intricate building architecture, decorated appliances inside the building, and inaccessibility and
Yuzana Hlaing, Nyein Aye Maung Maung
core   +5 more sources

Optimization of Time Synchronization and Algorithms with TDOA Based Indoor Positioning Technique for Internet of Things

open access: yesSensors, 2020
To provide high-precision positioning for Internet of Things (IoT) scenarios, we optimize the indoor positioning technique based on Ultra-Wideband (UWB) Time Difference of Arrival (TDOA) equipment.
Kun Zhao   +6 more
doaj   +2 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

TDOA –FDOA method for tracking of a moving target in a distributed sensor scenario [PDF]

open access: yesITM Web of Conferences, 2023
Tracking of an underwater target in ocean environment is very important in both military and civilian applications. This paper focuses on the localization and tracking of a moving target by a passive multi-static sonar system using TOA, Time Difference ...
George Sherly, Muralikrishna P.
doaj   +1 more source

Improving the Robustness of Time Difference of Arrival Estimation Based on the Energy Center of Gravity Rearrangement

open access: yesSensors, 2023
An accurate estimation of the time difference of arrival (TDOA) is crucial in localization, communication, and navigation. However, a low signal-to-noise ratio (SNR) can decrease the reliability of the TDOA estimation result.
Peng Zhang   +3 more
doaj   +1 more source

Improving TDOA Radar Performance in Jammed Areas through Neural Network-Based Signal Processing

open access: yesSensors, 2023
This paper presents a method for estimating the position of a target under jammed conditions using the Time Difference of Arrival (TDOA) method. The algorithm utilizes a deep neural network to overcome the challenges posed by the jammed conditions.
Jakub Gotthans   +2 more
doaj   +1 more source

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