Results 81 to 90 of about 4,089 (198)

The Impact of Multipath Information on Time-of-Arrival Estimation

open access: yes, 2022
Time-of-arrival (TOA) based localization plays a central role in current and future localization systems. Such systems, exploiting the fine delay resolution properties of wideband and ultra-wideband (UWB) signals, are particularly attractive for ranging ...
Dardari D., Win M. Z., Gifford W. M.
core   +1 more source

Joint DOA and TOA estimation method based on Pareto multi-task learning

open access: yes上海师范大学学报. 自然科学版
A joint estimation method for direction of arrival (DOA) and time of arrival (TOA) was proposed based on Pareto multi-task learning, which transformed the traditional multi-task learning problem into a multi-objective optimization problem for solution. A
CHEN Erqi, WEI Shuang
doaj   +1 more source

Time-of-Arrival (TOA) Localization for Indoor GIS

open access: yesGeographic Information Science & Technology Body of Knowledge, 2021
Tianxing Chu, Zhao Sihao
openaire   +1 more source

The Dependence of Emissions‐Based Anthropogenic Aerosol ERFs on Background Composition and Meteorological States in the GFDL‐ESM4.1 Model

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 11, 16 June 2026.
Abstract Anthropogenic aerosol effective radiative forcing (ERF) remains one of the largest uncertainties in quantifying the human influence on climate. Estimates of aerosol ERF depend on the background meteorological state and composition, including factors such as cloud regimes, circulation, and pre‐existing aerosol and precursor levels.
Shipeng Zhang   +3 more
wiley   +1 more source

Cramer-Rao bounds in the estimation of time of arrival in fading channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2018
This paper computes the Cramer-Rao bounds for the time of arrival estimation in a multipath Rice and Rayleigh fading scenario, conditioned to the previous estimation of a set of propagation channels, since these channel estimates (correlation between ...
René Játiva, Josep Vidal
doaj   +1 more source

Moving Target At Constant Velocity Localization Using TOA Measurements From Single Moving Receiver With Unknown Signal Period

open access: yesIEEE Open Journal of Signal Processing
In this article, we consider using time-of-arrival (TOA) measurements from a single moving receiver to locate a moving target at constant velocity that emits a periodic signal with unknown signal period.
Yanbin Zou, Jingna Fan, Zekai Zhang
doaj   +1 more source

Maximum likelihood localization: When does it fail?

open access: yesICT Express, 2016
Maximum likelihood is a criterion often used to derive localization algorithms. In particular, in this paper we focus on a distance-based algorithm for the localization of nodes in static wireless networks. Assuming that Ultra Wide Band (UWB) signals are
Stefania Monica, Gianluigi Ferrari
doaj   +1 more source

TOA estimation of UWB backscattering RFID tag with dual pulse modulation for clutter suppression

open access: yes, 2010
To realize precise localization for UWB backscattering RFID system, the arrival time of the direct path in the received signal (referred as time of arrival (TOA)) needs to be accurately estimated.
Choi L. Law   +3 more
core   +1 more source

performansi positioning indoor dengan menggunakan algoritma time of arrival (toa) pada sistem ultra-wideband [PDF]

open access: yes, 2007
ABSTRAKSI: Positioning merupakan suatu teknik penentuan posisi suatu objek, dimana hal ini bisa diukur dari sisi receiver ataupun dari sisi objek itu sendiri baik di dalam ruangan ataupun di luar ruangan.
renyati
core  

A low-complexity approach for time of arrival estimation in OFDM systems

open access: yes, 2017
This paper proposes a novel algorithm for Time of Arrival (ToA) estimation in Orthogonal Frequency Division Multiplexing (OFDM) systems. The algorithm performs the estimation starting from the channel frequency samples, in a fully opportunistic way when ...
Noschese, Matteo   +9 more
core   +1 more source

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