Results 51 to 60 of about 4,089 (198)
BASAT: BLE AOA-Based Spatio-Temporal Acoustic TOA Estimator
IEEE AccessIn severely reverberant indoor environments, acoustic Time-of-Arrival (TOA) localization on commercial smartphones is prone to multipath-induced bias and unreliable ranging.
Can Xue, Huixin Zhuge, Zhi Wang
doaj +1 more source
A novel time of arrival estimation algorithm using an energy detector receiver in MMW systems
EURASIP Journal on Advances in Signal Processing, 2017 This paper presents a new time of arrival (TOA) estimation technique using an improved energy detection (ED) receiver based on the empirical mode decomposition (EMD) in an impulse radio (IR) 60 GHz millimeter wave (MMW) system.
Xiaolin Liang +4 more
doaj +1 more source
Indoor distance estimation by using time of arrival
, 2018 Nowadays, researches about indoor positioning is very popular. Estimating location of a communication node can be used in navigation in a shopping mall or tracking in a work place, etc.
Aktas, Erdenay +3 more
core +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
Measurement and modeling of diffuse ultraviolet radiation: A review
Photochemistry and Photobiology, EarlyView.Solar UV radiation consists of direct and diffuse UV components. The diffuse component contributes to the exposure received by humans and to the risk of skin cancer and sun‐related eye disorders. This review aims to determine future research directions for the measurement and modeling of diffuse solar UV radiation.
Alfio V. Parisi +7 more
wiley +1 more source
Novel sensor location scheme using time-of-arrival estimates
, 2012 This study proposes a novel scheme for locating an asynchronous sensor with synchronised beacons using time-of-arrival (TOA) estimates. In this scheme, a reference beacon initiates the localisation by emitting a ranging signal, and the sensor position is
Wang, T.
core +1 more source
IEEE Access, 2019 The passive localization using multiple sensors is considered for emitter transmitting pulse signals with unknown start transmission time and period.
Shangyu Zhang +4 more
doaj +1 more source
Disaster Schooling Experiences and Emergent Crises: Lessons From Puerto Rico
Anthropology &Education Quarterly, Volume 57, Issue 3, September 2026.ABSTRACT This paper examines the disaster schooling experiences of Puerto Rican educators, families, and students across multiple crises following Hurricane Maria. Drawing on 11 months of ethnographic research, we analyze how schooling unfolded across disasters and how long‐standing vulnerabilities and structural inequalities shaped responses. Findings
Melissa Colón +2 more
wiley +1 more source
Time of arrival extraction for impact localisation on composite structures
Time of arrival (TOA) serves as a widely utilised metric for pinpointing impact locations on composite aircraft structures. Nevertheless, the effectiveness and reliability of existing TOA extraction methods across diverse impact scenarios remains unclear.
Aliabadi, MH +2 more
core +1 more source
Clinical Pharmacology &Therapeutics, Volume 120, Issue 1, Page 66-80, July 2026.Despite known risks, opioids are widely used for chronic non‐cancer pain (CNCP). Clinical guidelines now recommend deprescribing, but factors predicting success are poorly understood. This systematic review aimed to identify clinician and patient factors associated with attaining successful opioid dose reduction or discontinuation in adults with CNCP ...
Alessandra C. Marcelo +8 more
wiley +1 more source