Results 101 to 110 of about 4,089 (198)

The role of conjugacy in the dynamics of time of arrival operators

open access: yes
The construction of time of arrival (TOA) operators canonically conjugate to the system Hamiltonian entails finding the solution of a specific second-order partial differential equation called the time kernel equation (TKE).
Galapon, Eric A.   +3 more
core   +2 more sources

Fingerprint localization based on hybrid TOA, AOA, and RSS measurements

open access: yesDiscover Applied Sciences
This paper presents a novel joint TOA-AOA-RSS fingerprint localization method aimed at reducing the necessity for collecting extensive fingerprint data for database construction.
Shuiwei Liu, Lei Tang, Zhangsheng Wang
doaj   +1 more source

Moyal deformation of the classical arrival time

open access: yes
The quantum time of arrival (TOA) problem requires the statistics of measured arrival times given only the initial state of a particle. Following the standard framework of quantum theory, the problem translates into finding an appropriate quantum image ...
Galapon, Eric A., Pablico, Dean Alvin L.
core   +1 more source

Multi-dimensional bounds on time-of-arrival statistics in random scattering channels

open access: yes, 2011
Bounds on Gaussian and hyperbolic time-of-arrival (ToA) probability density functions (pdfs) in multi-path mobile environments are derived. The bounds are expressed as functions of the coverage distance D between a base station (BS) and a user equipment (
Le, Khoa N. (R14329)
core   +1 more source

An event qualifier for double differentiator time of arrival estimators

open access: yes, 1991
A low variance pulse time-of-arrival (TOA) estimator is considered. It should be insensitive to all non TOA parameters and operate without a priori information about any pulse parameters assuming they are constrained to a wide range.
Wisniewski, Wit Tadeusz, 1962-
core  

UWB Joint TOA and DOA Estimation

open access: yes, 2020
-This paper deals with the simultaneous estimation of Time of Arrival (TOA) and Direction of Arrival (DOA) in UWB systems considering multipath propagation.

core  

Time-of-Arrival and Angle-of-Arrival Measurement-Assisted 3D Inter-Unmanned Aerial Vehicle Relative Localization Under Distance-Dependent Noise Model

open access: yes
This paper addresses the 3D relative localization problem for two unmanned aerial vehicles (UAVs) using a combination of time-of-arrival (TOA) and angle-of-arrival (AOA) measurements across varied flight trajectories.
Tian Chang   +4 more
core   +1 more source

An indoor positioning system based on distributed LTE network

open access: yesDianxin kexue, 2018
Indoor positioning technology has important applications in the business and security fields,but there are still existing problems with low positioning accuracy and high deployment costs.An indoor positioning system based on long term evolution ( LTE ...
Yu YANG, Ming CHEN, Daqing LIU
doaj   +2 more sources

Time of Arrival (TOA) Based Radiolocation Architecture in CDMA Systems and Its Performance Analysis

open access: yesInternational Journal of Computer and Communication Engineering, 2018
Abir Ahmed   +3 more
openaire   +1 more source

Robust time-of-arrival localization via ADMM

open access: yes
This article considers the problem of source localization (SL) using possibly unreliable time-of-arrival (TOA) based range measurements. Adopting the strategy of statistical robustification, we formulate TOA SL as minimization of a versatile loss that ...
Xiong, Wenxin   +2 more
core   +1 more source

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