Results 111 to 120 of about 184,235 (277)

MFE-STN: A Versatile Front-End Module for SAR Deception Jamming False Target Recognition

Remote Sensing
Advanced deception countermeasures now enable adversaries to inject false targets into synthetic-aperture-radar (SAR) imagery, generating electromagnetic signatures virtually indistinguishable from genuine targets, thus destroying the separability ...
Liangru Li, Lijie Huang, Tingyu Meng, Cheng Xing, Tianyuan Yang, Wangzhe Li, Pingping Lu   +6 more
doaj   +1 more source

Peformance evaluation of a passive microwave imaging system [PDF]

A test program was conducted to evaluate the passive microwave imaging system for possible application in the NASA Earth Resources Program. In addition to test data analysis, the report gives a brief description of the radiometer, its software, and the ...
Mcallum, W. E.
core   +1 more source

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

A Real-Time MPSoC-Based Back Projection Accelerator for High-Accuracy Large-Size SAR Imaging Using Truncated Sinc Reconstruction and Mixed Precision Design

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The back projection (BP) algorithm has become an important method for achieving high-resolution synthetic aperture radar imaging due to its model-free assumptions, high imaging accuracy, and strong trajectory adaptability. However, its high computational
Xinyu Hu, Yinshen Wang, Jiabao Guo, Yao Cheng, Qiancheng Yan, Jiangyu Yao, Xiaolan Qiu   +6 more
doaj   +1 more source

A Simple Microwave Imaging System for Food Product Inspection through a Symmetry-Based Microwave Imaging Approach. [PDF]

Sensors (Basel), 2023
Bellizzi G, Buzzin A, Crocco L, Mastrandrea A, Zeni N, Zumbo S, Cavagnaro M.   +6 more
europepmc   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

Advanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

A Cross-Track Interferometric Synthetic Aperture 3D Passive Positioning Algorithm

Remote Sensing
High-precision, robust, and rapid three-dimensional (3D) passive positioning of the radiation source is critical for modern reconnaissance systems. While synthetic aperture technology has advanced 2D passive positioning performance, existing methods fail
Yuan Zhang, Xiangxi Bu, Sheng Guan, Jihao Xin, Zhiyu Jiang, Xuyang Ge, Miaomiao Li, Yanlei Li, Xingdong Liang   +8 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Multi‐Area Controllable Suppression Jamming Method Against SAR Based on Two‐Dimensional Phase Mismatch

IET Radar, Sonar & Navigation
In the imaging process of SAR, the secondary phase mismatch can cause image defocusing. In this paper, a suppression jamming method against SAR based on two‐dimensional (2D) phase mismatch is proposed through a designed jammer system.
Guangyuan Li, GuiKun Liu, Zhenyang Xu, Haoming Xu, Zhengshuai Li, Peng Wang, Yueyang Zhang, Liang Li   +7 more
doaj   +1 more source

A Channel-Adaptive Range-Doppler Domain Filtering Serial BAQ Algorithm and Comparative Analysis

Remote Sensing
With the growing demand for large-scale urban observation, multi-channel technology has become a cornerstone of high-resolution wide-swath SAR systems.
Tao Jiang, Fubo Zhang, Yi Xie, Chengwei Zhang, Longyong Chen, Yihao Xu, Haibo Tang   +6 more
doaj   +1 more source