Results 191 to 200 of about 95,355 (231)

Vernier time-to-digital converter with ring oscillators for in-pixel time-of-arrival and time-over-threshold measurement in 28 nm CMOS

Journal of Instrumentation, 2021
The paper describes a design of a prototype chip in 28 nm CMOS technology, consisting of 8 × 4 pixels with 50 μm pitch, dedicated for the precise measurement of Time-of-Arrival (ToA) and Time-over-Threshold (ToT) with a resolution within the picosecond ...
L. Kadlubowski, P. Kmon
semanticscholar   +1 more source

Simulation of Lightning Flash in Time of Arrival (TOA) Method by Using Three Broadband Antennas

2011 UKSim 5th European Symposium on Computer Modeling and Simulation, 2011
Various methods are used to locate cloud-to-ground lightning flash. The accuracy of the methods depends on the number of sensor stations, station topology, mathematical model adopted for the analyses, and type of measuring equipment. For a single station with the configuration of short baseline in a measuring system, the accuracy analysis is mostly ...
Saeed Vahabi Mashak, Hadi Nabipour Afrouzi, Zulkurnain Abdul-Malek   +2 more
openaire   +1 more source

CME-learn: An interactive playground to benchmark CME databases for the time of arrival (ToA) prediction for using machine learning methods.

2022
<p>Coronal mass ejections are one of the most significant drivers of space weather. The ToA predictions along with the Arrival speed of the CMEs are one of the crucial pieces of information for preparing for the possible geomagnetic storms.
Ajay Tiwari, Enrico Camporeale, Dario Del Moro, Raffaello Foldes, Gianluca Napoletano, Giancarlo de Gasperis, Jannis Teunissen   +6 more
openaire   +1 more source

Time-of-arrival (TOA) estimation based structured sparse channel estimation algorithm, with applications to digital TV receivers

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2004
We introduce a new structured channel impulse response (CIR) estimation method for sparse multipath channels where we demonstrate a robust way of restoring the pulse shape into the composite CIR. We call this novel CIR estimation method time-of-arrival based blended least squares (TOA-BLS) which uses symbol rate sampled signals, and it is based on ...
S. Ozen, M.D. Zoltowski
openaire   +1 more source

A Novel Pilot Aided Time of Arrival (TOA) Estimation Algorithm for Vehicular OFDM Systems in Specular Wireless Channels

2008 IEEE Globecom Workshops, 2008
Channel estimation is vital for implementing schemes such as coherent detection and adaptive bit loading, which make OFDM an attractive PHY layer technology for vehicular wireless communications. However, knowledge of the exact time of arrival (TOA) information of the multi-path components of the vehicular wireless channel is required to achieve ...
Vinay Uday Prabhu, Devendra Jalihal
openaire   +1 more source

Structured channel estimation algorithm based on estimating the time-of-arrivals (TOAs), with applications to digital TV receivers

SPIE Proceedings, 2003
In this paper we introduce a new structured channel impulse response (CIR) estimation method for sparse multipath channels. We call this novel CIR estimation method Time-Of-Arrival based Blended Least Squares (TOA-BLS) which uses symbol rate sampled signals, based on blending the least squares based channel estimation and the correlation and cleaning
Serdar Ozen, Michael D. Zoltowski
openaire   +1 more source

Direction/time of arrivals (D/TOA) estimation characteristics of the MUSIC algorithm for the actual extended targets of the chirp pulse tracking radar

Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322), 2003
This paper proposes the time space MUSIC technique using the chirp pulse signal of a tracking radar. Direction/time of arrival (D/TOA) estimation characteristics are evaluated for the simulated point sources, simulated extended air targets, and the actual extended air targets.
M. Uneda, H. Hokazono
openaire   +1 more source

Super-Resolution Time of Arrival Estimation for a Symbiotic FM Radio Data System

IEEE transactions on broadcasting, 2020
A symbiotic FM radio data system (SRDS) refers to a kind of digital broadcasting whose signal co-exists with the FM in channel. The SRDS signal has a symmetrical split spectrum in the band of the host FM signal spectrum.
Xi Chen, Qihui Wei, Fei Wang, Zhu Jun, Sheng Wu, Aidong Men   +5 more
semanticscholar   +1 more source

An underwater sensor network localization algorithm based on Time-of-Arrivals (TOAs)

2013 Ninth International Conference on Natural Computation (ICNC), 2013
The underwater sensor network localization algorithm is one of the very important steps in the underwater sensor network initialization process. Due to the deployment of environmental constraints, the underwater sensor node can only be indirectly localized by calculation.
openaire   +1 more source

Time-of-Arrival Estimation in Challenging Environments Using Commercial 5G NR Signals for Outdoor Positioning

IEEE Internet of Things Journal
The proliferation of 5G Internet of Things (IoT) devices in daily life has significantly increased the demand for 5G-based positioning services. This article presents a methodology for accurate time-of-arrival (TOA) estimation of commercial 5G new radio (
Wenxin Dong, Liang Chen, Zhanghai Ju, Zhenhang Jiao, Ruizhi Chen   +4 more
semanticscholar   +1 more source