Results 61 to 70 of about 4,007,379 (281)

A Method for Mapping Strong Scattering Information in SAR Images to 3D Target Geometry Using a Customized Differentiable SAR Simulator

Journal of Remote Sensing
Synthetic aperture radar (SAR) is widely used for target observation and information acquisition in Earth remote sensing. Currently, deeply exploring target information in SAR images and analyzing target scattering characteristics have become an ...
Zinan Liu, Shengren Niu, Xiaolan Qiu, Lingxiao Peng, Chibiao Ding   +4 more
doaj   +1 more source

Using the CLEAN Method in Three-Dimensional Polarimetric ISAR Imaging Based on Volumetric Scattering Points [PDF]

Journal of Electromagnetic Engineering and Science
We developed a new technique for generating three-dimensional monostatic inverse synthetic aperture radar (ISAR) images using various types of polarimetric information on targets.
Hyung-Jun Lee, Yeong-Hoon Noh, Jong-Gwan Yook   +2 more
doaj   +1 more source

Simulation-Based Feasibility Analysis of Ship Detection Using GNSS-R Delay-Doppler Maps

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In this article, we carry out a simulation analysis of ship detection via Global Navigation Satellite System-Reflectometry (GNSS-R) delay-Doppler map (DDM).
Tiziana Beltramonte, Paolo Braca, Maurizio Di Bisceglie, Alessio Di Simone, Carmela Galdi, Antonio Iodice, Leonardo M. Millefiori, Daniele Riccio, Peter Willett   +8 more
doaj   +1 more source

Strategy of Triple‐Gradient in Binary Pixels for Flexible Pressure Sensing with High Sensitivity and Wide‐Range Linearity

Advanced Science, EarlyView.
A flexible pressure sensor with triple‐gradient design of conductivity, modulus, and dimension in binary micro‐dome pixels is proposed. Based on precisely‐designed CNT/PDMS matrix, the device exhibits a linear sensitivity of 974.1 kPa−1 across range up to 1.8 MPa (R2 > 0.99), offering an effective strategy for potential applications in healthcare ...
Yifan Liu, Xiao Xu, Fengming Hu, Yuanzhe Liang, Zidong Yin, Biao Qi, Ruolin Liu, Ziyi Dai, Jianyi Luo, Bingpu Zhou   +9 more
wiley   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Simulador de radar meteorológico basado en modelo de Reflectividades en el espacio; Weather radar simulator based on space Reflectivity distribution

Revista Científica de Ingeniería Energética, 2012
Los radares meteorológicos son potentes instrumentos de medición de potencia eléctrica. Los simuladores de radar permiten estudiar la influencia de todos sus parámetros en las mediciones que realiza.
Vladímir Rodríguez Diez, Milagros Diez Rodríguez, Orlando Lázaro Rodríguez González   +2 more
doaj  

Target recognition techniques for multifunction phased array radar [PDF]

, 2010
This thesis, submitted for the degree of Doctor of Philosophy at University College London, is a discussion and analysis of combined stepped-frequency and pulse-Doppler target recognition methods which enable a multifunction phased array radar designed
French, A.
core  

EndoTac: An Endoscopic Camera‐Based Tactile Sensor with High Sensitivity for Minimally Invasive Surgery

Advanced Science, EarlyView.
EndoTac presents a trocar‐compatible endoscopic vision‐based tactile sensor that uses a convex mirror to enlarge side‐facing tactile coverage during minimally invasive vessel palpation. Distorted tactile images are unwarped and processed by a learning model to estimate vascular deformation, enabling sensitive, spatially distributed tactile perception ...
Yupeng Wang, Nicolas Raison, Xuyang Zhang, Aijia Yang, Lukas Lindenroth, Shan Luo   +5 more
wiley   +1 more source

Statistical Analysis of Simulated Radar Target's Movement for the Needs of Multiple Model Tracking Filter [PDF]

TransNav, 2011
The quality of radar target tracking has a great impact on navigational safety at sea. There are many tracking filters used in maritime radars. Large group of them are multiple model filters in which different filter parameters are used for different ...
Witold Kazimierski
doaj  

R-F Simulator for a Long-pulse Radar [PDF]

, 1966
X-band target simulator with spectral purity for long radar echo ...
Arnn, E. L., Jr.
core