Results 41 to 50 of about 26,224 (303)

The Next-Generation Multimission U.S. Surveillance Radar Network [PDF]

, 2007
The U.S. Government operates seven distinct radar networks, providing weather and aircraft surveillance for public weather services, air traffic control, and homeland defense.
Benner, William E., Cho, John Y, Flavin, James M, Herd, Jeffrey S., Torok, Garth S., Weber, Mark E.   +5 more
core   +1 more source

Random symmetric phase feeding compensation method for phased array radar based on equivalent monopulse model

IET Microwaves, Antennas & Propagation, 2023
In a phased array radar, the phase quantisation error of phase shifters can lead to the beam steering error (BSE) between the predetermined and the actual directions.
Shuang Qiu, Jianlin Ye, Renli Zhang, Xiaofeng Ma, Weixing Sheng   +4 more
doaj   +1 more source

A Phased Array Antenna System of a Millimeter-wave FMCW Radar for Blind Spot Detection of Mobile Robots

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
Mobile robots have been extensively used in manufacturing plants for inter-logistic transportation in recent years. This paper covers a phased array antenna design for a millimeter wave radar system to improve lidar-based navigation systems' safety and ...
Hüseyin Şerif Savcı
doaj   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

A Multi-Source Radar Data Complementary Enhancement Generation Method Based on Diffusion Model

Remote Sensing
Multi-source radar data fusion has become increasingly vital for advancing weather monitoring and forecasting. However, effectively integrating Doppler radar with an X-band phased-array radar remains challenging.
Yuan Peng, Xiongbo Zheng, Zhilong Shang, Kaiqi He, Zhiyong Cheng   +4 more
doaj   +1 more source

Phased Array Systems in Silicon [PDF]

, 2004
Phased array systems, a special case of MIMO systems, take advantage of spatial directivity and array gain to increase spectral efficiency. Implementing a phased array system at high frequency in a commercial silicon process technology presents several ...
Chunara, R., Guan, X., Hajimiri, A., Hashemi, H., Komijani, A., Natarjan, A.   +5 more
core  

Hybrid Beamforming With Sub-arrayed MIMO Radar: Enabling Joint Sensing and Communication at mmWave Band [PDF]

, 2018
In this paper, we propose a beamforming design for dual-functional radar-communication (DFRC) systems at the millimeter wave (mmWave) band, where hybrid beamforming and sub-arrayed MIMO radar techniques are jointly exploited.
Liu, Fan, Masouros, Christos
core   +2 more sources

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Analysis of Onboard Verification Flight Test for the Salinity Satellite Scatterometer

Sensors, 2023
The upcoming Salinity Satellite, scheduled for launch in 2024, will feature the world’s first phased array radar scatterometer. To validate its capability in measuring ocean surface backscatter coefficients, this paper conducts an in-depth analysis of ...
Yongqing Liu, Te Wang, Risheng Yun, Peng Liu, Wenming Lin, Di Zhu, Hao Liu, Xiangkun Zhang   +7 more
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source