Results 21 to 30 of about 414,744 (286)
TDoA-based outdoor positioning in a public LoRa network [PDF]
, 2018 The performance of LoRa Geo-location for outdoor tracking purposes has been evaluated on a public LoRaWAN network. Time Difference of Arrival (TDOA) localization accuracy, probability and update frequency were evaluated for different trajectories ...
Haxhibeqiri, Jetmir +9 more
core +2 more sources
Multi-Frequency Phase Difference of Arrival for Precise Localization in Narrowband LPWA Networks
ICC 2021 - IEEE International Conference on Communications, 2021 In Low Power Wide Area (LPWA) networks, radio localization based on Time Difference of Arrival measurements has major benefits: energy consumption of the node and spectrum usage are contained. Temporal resolution and hence positioning accuracy is however limited by the bandwidth of the LPWA narrowband signals.
Wolf, Florian +4 more
openaire +2 more sources
Interval analysis-based Bi-iterative algorithm for robust TDOA-FDOA moving source localisation
International Journal of Distributed Sensor Networks, 2021 In this study, an interval extension method of a bi-iterative is proposed to determine a moving source. This method is developed by utilising the time difference of arrival and frequency difference of arrival measurements of a signals received from ...
Ningning Qin +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
Robust Source Localization Using TDOA and FDOA with Receiver Location Errors
Leida xuebao, 2020 To address the low location accuracy and poor robustness of existing methods, error correction to improve the Stage 2 of the original Two-Stage Weighted Least Squares (TSWLS)-based methods is proposed, which involves a robust moving source localization ...
Xiangying GAO +3 more
doaj +1 more source
Array-based iterative measurements of SmKS travel times and their constraints on outermost core structure [PDF]
, 2020 Vigorous convection in Earth's outer core led to the suggestion that it is chemically homogeneous. However, there is increasing seismic evidence for structural complexities close to the outer core's upper and lower boundaries.
Choy G. L. +3 more
core +1 more source
Optimal Sensor Deployment and Velocity Configuration With Hybrid TDOA and FDOA Measurements
IEEE Access, 2019 Source localization based on the hybrid time-difference-of-arrival (TDOA) and frequency-difference-of-arrival (FDOA) measurements from distributed sensors is an essential problem in wireless sensor networks (WSNs).
Weijia Wang +4 more
doaj +1 more source
IEEE Access, 2020 Multiple-target localization is extensively applied in wireless connected networks. However, sensor location uncertainty is known to degrade significantly the target localization accuracy.
Ding Wang +4 more
doaj +1 more source
RePos : relative position estimation of UHF-RFID tags for item-level localization [PDF]
, 2019 Radio frequency identification (RFID) technology brings tremendous applications in location-based services. Specifically, ultra-high frequency (UHF) RFID tag positioning based on phase (difference) of arrival (PoA/PDoA) has won great attention, due to ...
De Poorter, Eli +6 more
core +2 more sources
EURASIP 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 +1 more source