Results 11 to 20 of about 709 (147)

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

Performance Analysis of TDOA and FDOA Estimation for Pulse Signals

open access: yesInternational 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
doaj   +2 more sources

A Novel Joint TDOA/FDOA Passive Localization Scheme Using Interval Intersection Algorithm

open access: yesInformation, 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
doaj   +2 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   +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   +2 more sources

Joint localization algorithm of TDOA and FDOA considering the position error of underwater sensors

open access: yesIET Radar, Sonar & Navigation, 2022
The joint localization method of TDOA and FDOA is widely used because it can estimate the underwater moving source well. Usually, a two‐step weighted least squares (TSWLS) algorithm is used to estimate the source. However, the noise square term is always
Tianci Meng, Zhenkai Zhang, Yunhang Lin
doaj   +2 more sources

Geolocation a known‐altitude moving source by TDOA and FDOA measurements

open access: yesElectronics Letters, 2022
Source altitude information, if known or can be measured by an altimeter, can greatly improve localisation performance. In this letter, a novel algebraic solution for known‐altitude moving source geolocation using time difference of arrival and frequency
Yuhao Pei, Guizhou Wu, Fucheng Guo
doaj   +2 more sources

An algebraic method for moving source localization using TDOA, FDOA, and differential Doppler rate measurements with receiver location errors

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
To weaken the effect of receiver location error on localization accuracy and make the localization model closer to the practical scenario, this paper considers the receiver location errors, usually neglected in prior studies into the measurement model ...
Zhixin Liu   +3 more
doaj   +2 more sources

A Moving Source Localization Method for Distributed Passive Sensor Using TDOA and FDOA Measurements [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2016
The conventional moving source localization methods are based on centralized sensors. This paper presents a moving source localization method for distributed passive sensors using TDOA and FDOA measurements.
Zhixin Liu   +3 more
doaj   +2 more sources

Integration of attention mechanism and CNN-BiGRU for TDOA/FDOA collaborative mobile underwater multi-scene localization algorithm

open access: yesComplex & Intelligent Systems
The aim of this study is to address the issue of TDOA/FDOA measurement accuracy in complex underwater environments, which is affected by multipath effects and variations in water sound velocity induced by the challenging nature of the underwater ...
Duo Peng, Ming Shuo Liu, Kun Xie
doaj   +2 more sources

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