Results 121 to 130 of about 1,598,295 (269)

Spaceborne SAR Operating Mode Recognition Network Based on Azimuth Time-Frequency Amplitude Sequence

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) plays a significant role in electronic reconnaissance due to its high-resolution imaging capabilities. Recognizing the operating modes of spaceborne SAR systems is crucial for implementing targeted jamming measures to ...
Jiayue Cao, Fei Teng, Guangzuo Li, Bing Han, Zhongqiu Xu, Zongxiang Xu, Wen Hong   +6 more
doaj   +1 more source

Nonlinear Frequency Scaling Algorithm for High Squint Spotlight SAR Data Processing

EURASIP Journal on Advances in Signal Processing, 2008
This paper presents a new approach for the squint-mode spotlight SAR imaging. Like the frequency scaling algorithm, this method starts with the received signal dechirped in range.
Xingzhao Liu, Lihua Jin
doaj   +1 more source

Advanced Multi-Channel SAR Imaging - Measured Data Demonstration [PDF]

, 2009
Synthetic Aperture Radar (SAR) is a well-established technique for remote sensing of the Earth. However, conventional SAR systems relying on only a single transmit and receive aperture are not capable of imaging a wide swath with high spatial resolution.
Almeida, Felipe, Gebert, Nicolas, Krieger, Gerhard   +2 more
core  

Democratising Multi‐Projector Displays

Computer Graphics Forum, EarlyView.
Spatially augmented reality (SAR) transforms large, surround, collaborative experiences out of VR/AR headsets to the real world by merging content from projectors with the physical environment. This detailed state‐of‐the‐art survey reports on the advancements in multi‐projector aggregation and hardware technologies used to achieve SAR and build ...
Aditi Majumder, Muhammad Twaha Ibrahim
wiley   +1 more source

RSCIWANet: Regional Spatial-Channel Information Weighted Attention Network for Video SAR and Large-Scale SAR Image Targets Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) encounters distinct challenges in airborne surveillance (dynamic scene variations, target edge blurring) and spaceborne observation (large-scale analysis, high-resolution processing).
Hao Chang, Ping Lang, Xiongjun Fu, Kunyi Guo, Xinqing Sheng, Jialin Guan, Chuyi Liu   +6 more
doaj   +1 more source

Emerging applications of large language models in ecology and conservation science

Conservation Biology, EarlyView.
Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides, Hao Gu, Thilina S. Nimalrathna, Naufal Rahman Avicena, Harris Papadopoulos, Ahimsa Campos‐Arceiz   +5 more
wiley   +1 more source

Advanced Digital Beamforming Concepts for High Performance Synthetic Aperture Radar (SAR) Imaging [PDF]

, 2009
This paper reviews advanced multi-channel SAR system concepts for the imaging of wide swaths with high resolution. Several novel system architectures employing both direct radiating arrays and reflector antennas fed by a digitial array are introduced ...
Patyuchenko, Anton, Huber, Sigurd, Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard   +6 more
core  

Five‐year assessment of wolf translocation to Isle Royale National Park, 2018–2023

Conservation Science and Practice, EarlyView.
The National Park Service used a variety of methods to monitor the success of a restored wolf population on Isle Royale National Park. Abstract Gray wolf (Canis lupus) translocation is a common approach for restoring ecological function through top‐down regulation.
Adia R. Sovie, Mark C. Romanski, Dean E. Beyer Jr, Hailey M. Boone, Edmund J. Isaac, Kenneth F. Kellner, David Marneweck, Seth A. Moore, Elizabeth K. Orning, Brent R. Patterson, Lynette R. Potvin, Michelle L. Verant, Jerrold L. Belant   +12 more
wiley   +1 more source

Targeted, receptor‐mediated delivery of a masked d‐amino acid cell‐penetrating peptide for cell‐specific phototoxicity

The FEBS Journal, EarlyView.
A targeted phototoxic peptide selectively accumulates in cells expressing chemokine‐like receptor 1 (CMKLR1). Phototoxicity of the native peptide is low, but cleavage by lysosomal protease cathepsin B releases a 6‐tetramethylrhodamine (TMR) labeled nona‐ᴅ‐arginine which mediates lysosomal rupture and cell death upon irradiation.
Moritz List, Eva‐Maria Jülke, Annette G. Beck‐Sickinger   +2 more
wiley   +1 more source

The Perceived Impact of COVID‐19 Pandemic on Dental Therapy and Hygiene Students' Mental Wellbeing: A Qualitative Study

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim The aim of this research was to investigate any perceived impact from the COVID‐19 pandemic on the well‐being of dental therapy students. Methods Dental therapy students were invited to participate in focus groups to explore any impact of COVID‐19 on their wellbeing. One pilot and two online focus groups were conducted.
Morag Powell, James Donn, Vivian Binnie
wiley   +1 more source