Results 71 to 80 of about 46,278 (262)

Limited elephant impacts on baobabs despite increasing elephant densities in a newly established protected area

Conservation Science and Practice, EarlyView.
Researchers combined aerial and ground surveys to map baobab distribution and assess elephant herbivory impacts on baobabs across Karingani Game Reserve, Mozambique. Researchers found that aerial surveys were an effective tool for mapping baobabs and that baobabs were more likely to occur closer to permanent water, at lower elevations, and in areas ...
Audrey Y. Chin, Catherine A. Ressijac, Peter S. Goodman, Hannah Adler, Andrew B. Davies   +4 more
wiley   +1 more source

AIRBORNE INTERFEROMETRIC SYNTHETIC APERTURE RADAR

Научный вестник МГТУ ГА, 2016
This article gives a brief description of the interferometric SAR mode. It gives a description and the main characteristics of some airborne interferometric SAR systems.
E. E. Nechaev, K. S. Deryabin
doaj  

Fast GMTI Algorithm For Traffic Monitoring Based On A Priori Knowledge

, 2012
In this paper a fast a priori knowledge-based ground moving target indication and parameter estimation algorithm applicable to single- as well as to multi-channel synthetic aperture airborne radar data is presented.
Baumgartner, Stefan Valentin, Krieger, Gerhard   +1 more
core   +1 more source

Leveraging High‐Frequency Digital Data to Analyze Forced Displacement Dynamics: A Case Study from the Gaza Strip

Population and Development Review, EarlyView.
Abstract The quantification and analysis of forced displacement, driven by political unrest or natural disasters, has become increasingly central to both humanitarian and demographic research. With displaced populations reaching record numbers, there is an urgent need for accurate and timely data on displacement patterns, particularly disaggregated by ...
Edith Darin, Ridhi Kashyap, Douglas R. Leasure   +2 more
wiley   +1 more source

Acumulation of data in a synthetic aperture radar mounted on a UAV

Физика волновых процессов и радиотехнические системы
Background. Currently, there is an intensive development of synthetic aperture radar systems, including those deployed on UAVs. The deployment of remote control systems on board aircraft UAVs opens up wide opportunities for inexpensive and effective ...
Aleksey V. Borisenkov, Oleg V. Goryachkin, Alexey S. Lifanov   +2 more
doaj   +1 more source

Performance Investigation on Scan-On-Receive and Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar

, 2009
The work investigates the performance of the Smart Multi-Aperture Radar Technique (SMART) Synthetic Aperture Radar (SAR) system for high-resolution wide-swath imaging based on Scan-on-Receive (SCORE) algorithm for receive beam steering.
Bordoni, Federica, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard, Makhoul Varona, Eduardo   +4 more
core  

Synthetic aperture radar for all weather penetrating UAV application (SARape) - project presentation

, 2022
S.290-293The capability to image scenes from unmanned aerial vehicles (UAVs) even through bad weather conditions or dust clouds is an important requirement for state-of-the-art synthetic aperture radar (SAR).
Leuther, Arnulf, Georgiou, George E., Caris, Michael, Essen, Helmut, Stanko, Stephan, Malanowski, Mateusz, Tessmann, Axel, Papanastasiou, Andreas C., Kulpa, Krzysztof, Samczynski, Piotr, Guraly, Roland, Bilacz, Zoltan, Topping, Christopher, Meszoly, Gyorgy, Weber, Rainer   +14 more
core  

Addressing Uncertainties in Climate–Ecosystem Feedbacks in the Arctic: Ten Priority Research Questions for Integrated Observation and Modeling

Ecological Research, Volume 41, Issue 4, July 2026.
Uncertainties exist in the biosphere–climate feedbacks in the Arctic. Remote and ground measurements play complementary roles in detecting possible changes. A critical next step is identification of key drivers of the global changes for future projections. ABSTRACT Positive biosphere–climate feedbacks are likely to amplify the Arctic warming, yet major
Akira S. Mori, Keita Nishizawa, Shota Masumoto, Ülo Niinemets, Vincent Maire, Xinyu Xu, Shu‐Kuan Wong, Kureha F. Suzuki, Joël Bêty, J. Hans C. Cornelissen, Masaki Uchida   +10 more
wiley   +1 more source

Coherent Performance Analysis of the HJ-1-C Synthetic Aperture Radar

Leida xuebao, 2014
Synthetic Aperture Radar (SAR) is a coherent imaging radar. Hence, coherence is critical in SAR imaging. In a coherent system, several sources can degrade performance.
Li Hai-ying, Zhang Shan-shan, Li Shi-qiang, Zhang Hua-chun   +3 more
doaj   +1 more source

MSWD: A Hybrid Machine‐Learning Framework for Slant Wet Delay Modeling

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract Space geodetic techniques such as Global Navigation Satellite Systems (GNSS) and Very Long Baseline Interferometry (VLBI) are limited by direction‐dependent tropospheric delays, with slant wet delay (SWD) being the most variable component and a major error source.
Zhenyi Zhang, Benedikt Soja
wiley   +1 more source