Results 101 to 110 of about 95,672 (234)

A geometrical result regarding time-of-arrival lightning location [PDF]

One reason for investigating Lightning Detection And Ranging (LDAR) is to validate data from the Optical Transient Detector (OTD). A Time-Of-Arrival (TOA) procedure may be used with radio wave portions of lighting signatures.
Solakiewicz, Richard
core   +1 more source

Development of a Mesoscale‐ and Tide‐Resolving Ocean–Biogeochemistry Model for the Pacific: Tidal Enhancement of the Biological Carbon Pump

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 4, April 2026.
Abstract This study presents a new physical‐biogeochemical simulation of the Pacific Ocean that resolves mesoscale dynamics and explicitly includes tidal forcing. The primary objective is to develop and document a modeling framework that serves both as a detailed record of model configuration and forcing preparation, and as a reference for future ...
Pierre Damien, Jeroen Molemaker, Daniel McCoy, Devin Dollery, Jerome Guiet, Daniele Bianchi, James C. McWilliams   +6 more
wiley   +1 more source

TOA Estimator for UWB Backscattering RFID System with Clutter Suppression Capability

EURASIP Journal on Wireless Communications and Networking, 2010
Time of arrival (TOA) estimation in multipath dense environment for UWB backscattering radio frequency identification (RFID) system is challenging due to the presence of strong clutter.
Xu Chi, Law ChoiL
doaj   +2 more sources

Snow‐Covered Insights From Above and Below: High‐Frequency Measurement of Nitrogen Dioxide From Space and Ground

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The Tropospheric Emissions: Monitoring of Pollution (TEMPO) satellite provides hourly air quality measurements over North America. This study evaluates TEMPO NO2 ${\text{NO}}_{2}$ observations over snow‐covered surfaces, highlighting its ability to capture sharp spatial and temporal gradients in NO2 ${\text{NO}}_{2}$ vertical column densities ...
D. Griffin, X. Zhao, C. McLinden, N. Yazdani, C. R. Nowlan, G. González Abad, V. Fioletov, Elisabeth Galarneau, Cris Mihele, Sumi Wren, Yushan Su, Lukas Fehr, Adam Bourassa   +12 more
wiley   +1 more source

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

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

Performance Analysis for Time-of-Arrival Estimation with Oversampled Low-Complexity 1-bit A/D Conversion

, 2017
Analog-to-digtial (A/D) conversion plays a crucial role when it comes to the design of energy-efficient and fast signal processing systems. As its complexity grows exponentially with the number of output bits, significant savings are possible when ...
Stein, Manuel S.
core   +1 more source

Transient Evolution of Polar Amplification Under Different CO2 Ramping Rates

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Polar amplification is a robust feature of greenhouse‐gas‐forced climate change. Previous studies have typically examined it over a fixed time period or following an abrupt increase in atmospheric CO2 ${\text{CO}}_{2}$. Here, we investigate how the transient evolution of polar amplification depends on the rate of atmospheric CO2 ${\text{CO}}_ ...
Camille Hankel, David B. Bonan
wiley   +1 more source

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

EURASIP 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

Positioning of aquatic animals based on time-of-arrival and random walk models using YAPS (Yet Another Positioning Solver)

Scientific Reports, 2017
Aquatic positional telemetry offers vast opportunities to study in vivo behaviour of wild animals, but there is room for improvement in the data quality provided by current procedures for estimating positions.
H. Baktoft, K. Gjelland, F. Økland, U. H. Thygesen   +3 more
semanticscholar   +1 more source

An Arctic Sea Ice Energy Budget for the Last Interglacial

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract With ongoing anthropogenic warming, the Arctic is increasingly dominated by thin, first‐year sea ice. Understanding the ice–ocean–atmosphere interactions in warmer climates is therefore essential. We analyze the Arctic sea‐ice energy budget in nine CMIP6‐PMIP4 lig127k simulations of the Last Interglacial warm Arctic.
M. Pollock, R. Diamond, H. Heorton, L. C. Sime, D. Schroeder, C. Brierley   +5 more
wiley   +1 more source