Results 111 to 120 of about 9,877,522 (229)

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, Volume 21, Issue 9, Page 1390-1403, September 2026.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

WAVEFORM DESIGN WITH POLYNOMIAL PHASE IN MODERN RADAR SYSTEMS [PDF]

open access: yes
This research examines radar waveform design, interference mitigation, and performance optimization in modern radar systems, with a focus on multi-sensor setups and dynamic target detection.
AMAR, Robin
core   +1 more source

Toward an Improved Understanding of the Antarctic Coastal Zone and Its Contribution to Future Global Sea Level

open access: yesReviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka   +79 more
wiley   +1 more source

Fundamental aspects of netted radar performance [PDF]

open access: yes, 2010
Netted radar employs several spatially distributed transmitters and receivers for information retrieval. This system topology offers many advantages over traditional monostatic and bistatic systems which use a single transmitter and a single receiver ...
Teng, Y.
core  

Satellite‐Derived Volume Budget of Antarctic Sea Ice

open access: yesEarth and Space Science, Volume 13, Issue 9, September 2026.
Abstract In recent years, the Antarctic has seen a notable shift in sea ice trends: Where sea ice extent and volume were increasing on average, they have shown an unprecedented decline since 2016. Understanding the drivers of this shift is crucial to determining the impacts of climate change on sea ice and improving modeling of Antarctic sea ice ...
Sabina Sulikova   +14 more
wiley   +1 more source

A Detection and Cover Integrated Waveform Design Method with Good Correlation Characteristics and Doppler Tolerance

open access: yesRemote Sensing
With the increasing complexity of the electromagnetic environment, radar waveform design needs to break through the limitation of traditional single-function architectures, prompting the emergence of integrated radar waveforms.
Haoting Guo   +6 more
doaj   +1 more source

Acoustic Wave Signatures of Earthquake Rupture Dynamics in the Upper Atmosphere

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract We perform three‐dimensional coupled earthquake‐atmosphere numerical simulations that integrate dynamic rupture, seismic wave propagation, and a compressible nonlinear atmospheric model to investigate how earthquake source parameters influence acoustic wave (AW) characteristics at 100–300 km altitude in the thermosphere.
Y. Kaneko   +5 more
wiley   +1 more source

Research on Optimization Design Method of MIMO Radar Waveform Based on Frequency-Orthogonal LFM

open access: yesIEEE Access
In the field of Multiple Input Multiple Output(MIMO) radar waveform design, how to design an orthogonal waveform with high performance is one of the current hot topics. The Orthogonal Frequency Division Multiplexing - Linear Frequency Modulation(OFDM-LFM)
Xinrong Mao   +3 more
doaj   +1 more source

Submarine Landslides Could Cause Wide‐Spread Tsunami Impact in the East Sea (Sea of Japan)

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract The East Sea (Sea of Japan) is a seismically active back‐arc basin with a history of devastating tsunamis, yet regional hazard assessments and mitigation planning often overlook the tsunamigenic potential of submarine landslides. This study investigates the tsunami impact of large‐scale mass failures along the southwest (SW) margin of the East
Deniz Cukur   +6 more
wiley   +1 more source

Sea‐Level Change in Hong Kong From Tide Gauges, GNSS, and Satellite Altimetry

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract As a densely populated, highly urbanized coastal city, Hong Kong is particularly vulnerable to sea‐level rise, which amplifies flood risk and threatens coastal infrastructure, economies, and ecosystems. We combine observations from tide gauges, conventional gridded satellite altimetry, coastal‐retracked altimetry, and Global Navigation ...
Dongju Peng   +5 more
wiley   +1 more source

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