Results 61 to 70 of about 1,667 (165)
Sensors, 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 +1 more source
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.Full‐wave electromagnetic simulation of forward scatter radar cross section (FSRCS) of a Shahed‐type UAV. The 3D model is combined with angular scattering patterns, illustrating the dependence of forward scattering on observation angle and polarisation.
Oleksii Bielousov +2 more
wiley +1 more source
Constrained Weighted Least-Squares Algorithms for 3-D AOA-Based Hybrid Localization
IEEE Open Journal of Signal ProcessingSource localization with time-of-arrival (TOA), time-difference-of-arrival (TDOA), time-delay (TD), received-signal-strength (RSS), or angle-of-arrival (AOA) measurements from several spatially distributed sensors is commonly used in practice.
Yanbin Zou +3 more
doaj +1 more source
Applied Sciences, 2019 Cellular communication systems support mobile phones positioning function for Enhanced-911 (E-911) location requirements, but the positioning accuracy is poor. The fifth-generation (5G) cellular communication system can use indoor distribution systems to
Zhongliang Deng +6 more
doaj +1 more source
Position determination of acoustic source using a discrete probability density method supported by joint detection and time of arrival estimation [PDF]
Scientific Technical Review, 2017 The localization of various acoustic sources in a battlefield (such as weapon rounds, mortars, rockets, mines, improvised explosive devices, vehicle-borne improvised explosive devices and airborne vehicles) nowadays has significant history.
Pokrajac Ivan +4 more
doaj
A Mathematical Algorithm of Locomotive Source Localization Based on Hyperbolic Technique
International Journal of Distributed Sensor Networks, 2015 Recent trend shows that sensors situated on an axis in two-dimensional scenario measuring the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) of the emitting signal from a moving source can estimate the emitting signal's ...
Homayun Kabir +3 more
doaj +1 more source
An Iterative Method for Moving Target Localization Using TDOA and FDOA Measurements
IEEE Access, 2018 For moving targets localization, incorporating frequency-difference-of-arrival (FDOA) measurements in the commonly used time-difference-of-arrival (TDOA) positioning systems will improve performance.
Yanbin Zou, Huaping Liu, Qun Wan
doaj +1 more source
Underground personnel positioning system based on ultra wideband technology
Gong-kuang zidonghua, 2014 In view of problems of short transmission distance, poor anti-multipath effect and low positioning accuracy existed in current underground personnel positioning technologies, an underground personnel positioning system was proposed by use of ultra ...
LIU Shulun, WANG Shuse
doaj +1 more source
, 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
openaire +2 more sources
Applied SciencesLocalizing a moving source by Time Difference of Arrival (TDOA) and Frequency Difference of Arrival (FDOA) commonly requires at least N+1 sensors in N-dimensional space to obtain more than N pairs of TDOAs and FDOAs, thereby establishing more than 2N ...
Xu Yang
doaj +1 more source