Results 11 to 20 of about 1,023 (184)
Joint localization algorithm of TDOA and FDOA considering the position error of underwater sensors
IET 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
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Geolocation a known‐altitude moving source by TDOA and FDOA measurements
Electronics 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
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High-Precision Joint TDOA and FDOA Location System
Remote SensingPassive location based on TDOA (time difference of arrival) and FDOA (frequency difference of arrival) is the mainstream method for target localization. This paper proposes a fast time–frequency difference positioning method to address issues such as low
Guoyao Xiao +5 more
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Signal models for TDOA/FDOA estimation
IEEE Transactions on Aerospace and Electronic Systems, 2008 Much research has been done in the area of estimating time-difference-of-arrival (TDOA) and frequency-difference-of-arrival (FDOA) and their use in locating a radiating source. Early work in this area was focused on locating acoustic sources using passive sonar processing.
Mark L. Fowler, Xi Hu
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TDOA –FDOA method for tracking of a moving target in a distributed sensor scenario [PDF]
ITM 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.
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A Multi-Pulse Cross Ambiguity Function for the Wideband TDOA and FDOA to Locate an Emitter Passively
Remote Sensing, 2022 The time difference of arrival (TDOA) and frequency difference of arrival (FDOA) between two receivers are widely used to locate an emitter. Algorithms based on cross ambiguity functions can simultaneously estimate the TDOA and FDOA accurately.
Yuqi Wang +5 more
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Journal 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
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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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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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IET Radar, Sonar &Navigation, Volume 17, Issue 10, Page 1498-1506, October 2023., 2023 Based on the time difference direction‐finding algorithm, new mathematical expressions of geometric dilution of precision (GDOP) are presented in Time Difference of Arrival positioning systems in this paper. The time difference direction‐finding reveals that the angle measurements are accurate for any length of baseline.
Yang Bai +3 more
wiley +1 more source