Results 11 to 20 of about 8,492 (192)

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

Anchor Pair Selection for Error Correction in Time Difference of Arrival (TDoA) Ultra Wideband (UWB) Positioning Systems [PDF]

open access: yes2021 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2021
Ultra wideband positioning systems typically use techniques such as two way ranging (TWR) or time difference of arrival (TDoA) to calculate the position of mobile tags. TDoA techniques require the transmission of only a single packet by the mobile tag, thus providing better scalability, higher update rates and less energy consumption than TWR ...
Van Herbruggen, Ben   +2 more
openaire   +2 more sources

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

Localization of Underwater Noise Sources Using TDOA (Time Difference of Arrival) Method [PDF]

open access: yesJournal of the Society of Naval Architects of Korea, 2011
As considerable interests in noise emission from a ship have been increased, the need for localization of noise sources of the marine propeller generating cavitation and singing noise is looming large. In many practical cases, cavitation and singing noise occur on a particular position of the certain blade of the propeller.
Byoung-Kwon Ahn   +4 more
openaire   +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

Semidefinite Programming Algorithms for 3-D AOA-Based Hybrid Localization

open access: yesIEEE Open Journal of Signal Processing, 2023
By taking different kinds of measurements at the same time, it may be possible to improve the accuracy of target localization or reduce the number of sensors needed.
Yanbin Zou
doaj   +1 more source

Comparative Performance Analysis of Time Local Positioning Architectures in NLOS Urban Scenarios

open access: yesIEEE Access, 2020
Autonomous navigation has meant a challenge for traditional positioning systems. As a consequence, ad-hoc deployments of sensors for addressing particular environment characteristics have emerged known as Local Positioning Systems (LPS). Among LPS, those
Ruben Alvarez   +3 more
doaj   +1 more source

A two‐stage iterative method for short‐wave source localisation

open access: yesIET Radar, Sonar & Navigation, 2023
Short‐wave source localisation has an important role in many fields. A two‐stage iterative algorithm is proposed based on the ionospheric virtual height (IVH) model using the direction of arrival (DOA) and time difference of arrival (TDOA) measurements ...
Linqiang Jiang   +4 more
doaj   +1 more source

On the effect of SNR and superdirective beamforming in speaker diarisation in meetings [PDF]

open access: yes, 2012
This paper examines the effect of sensor performance on speaker diarisation in meetings and investigates the use of more advanced beamforming techniques, beyond the typically employed delay-sum beamformer, for mitigating the effects of poorer sensor ...
Lincoln, M., Renals, S., Zwyssig, E.
core   +2 more sources

Dual-Satellite Source Geolocation with Time and Frequency Offsets and Satellite Location Errors [PDF]

open access: yes, 2017
This paper considers locating a static source on Earth using the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements obtained by a dual-satellite geolocation system.
Liu, C., Mihaylova, L.S., Yang, L.
core   +1 more source

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