Results 91 to 100 of about 821,989 (218)
, 1978 An FM/CW radar system is presented with improved noise discrimination in which the received signal is multiplied by a sample of the transmitted signal, and the product signal is employed to deflect a laser beam as a function of frequency. The position of
Brey, H., Geise, P. E., Jr.
core
Performance analysis of a multi-frequency FM based passive bistatic radar
, 2008 In this paper we evaluate the target detection performance improvement of a multi-frequency approach for FM radio based Passive Bistatic Radar. Specifically, we consider the high diversity of the FM radio signals received over different carrier ...
Carlo Bongioanni +5 more
core +1 more source
In the Age of AI—Are National Models and Data Sets Still Important for Stream Flow Prediction?
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract Accurate streamflow prediction is critical for effective water resource management, and recent advances in deep learning and multi‐basin data sets have significantly improved model skill. Global deep‐learning models, trained on thousands of catchments have demonstrated strong generalization across diverse climates and continents.
Brett Snider, Ehsan Roshani
wiley +1 more source
Journal of Animal Ecology, Volume 95, Issue 10, Page 2050-2062, October 2026.We demonstrate that environmental filtering is the primary mechanism shaping bat communities across the Cerrado–Atlantic Forest ecotone. By integrating phylogenetic diversity, environmental gradients, and coevolutionary assembly models, our study provides new insights into the processes maintaining biodiversity in a globally important transition zone ...
Daiana Cardoso Silva +2 more
wiley +1 more source
A Track Initiation Method for FM-based Passive Radar Network Based on Multiple Elementary Hypotheses
Leida xuebaoPassive radars based on FM radio signals have low detection probability, high false alarm rates and poor accuracy, presenting considerable challenges to target tracking in radar networks.
Yueyang HU +4 more
doaj +1 more source
A Study on Interference Cancellation in a FM-CW Radar
The Journal of the Korean Institute of Information and Communication Engineering, 2012 Two separate antennas are usually adopted in high performance radar systems to achieve the high degree of isolation since the transmission and reception of signals cannot be separated in time. However, even though two spatially separated antennas are installed in the system, strong signals from a transmission antenna can cause the serious interference ...
Jong-Gil Lee, Chang-Ki Lee
openaire +2 more sources
A Self‐Supervised Framework for Space Object Behaviour Characterisation
Expert Systems, Volume 43, Issue 10, October 2026.ABSTRACT Foundation Models, which leverage large neural networks pre‐trained on unlabelled data before fine‐tuning for specific tasks, are increasingly being applied to specialised domains. Recent examples include ClimaX for climate and Clay for satellite Earth observation, but a Foundation Model for Space Object Behavioural Analysis (SOBA) has not yet
Ian Groves +6 more
wiley +1 more source
Open Ocean Biogeochemical Impacts of Extreme Terrestrial Precipitation
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Extreme events reshape ocean ecosystems with significant implications for nutrient and carbon cycling. Here, we demonstrate that flooding on land can be a significant driver of biogeochemical variability in the open ocean, even in relatively dry climates.
Shailja Gangrade +9 more
wiley +1 more source
Leida xuebaoInterrupted Sampling Repeater Jamming (ISRJ) is a type of intrapulse coherent jamming that can form multiple realistic false targets that lead or lag behind the actual target, severely affecting radar detection.
Xiaoge WANG +5 more
doaj +1 more source
Assessing Wildfire Hazard for Powerline Expansion Under the Changing Climates in Alberta, Canada
Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.Abstract Escaped powerline‐caused fires (EPFs) are increasing in fire‐prone regions, including Alberta, Canada, underscoring growing tensions between expanding powerlines and managing wildfire risk. As fire‐conducive weather becomes more frequent, it remains unclear how future infrastructure can be planned to minimize wildfire risk.
Xuezheng Zong +4 more
wiley +1 more source