Results 51 to 60 of about 1,404,977 (295)

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

open access: yesIET 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   +4 more
doaj   +1 more source

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

open access: yesSakarya 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

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

open access: yesAdvanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting   +5 more
wiley   +1 more source

Why The Phased-Mimo Radar Outperforms The Phased-Array And Mimo Radars

open access: yes, 2010
Publication in the conference proceedings of EUSIPCO, Aalborg, Denmark ...
Aboulnasr Hassanien, Sergiy A. Vorobyov
openaire   +2 more sources

Command and Control for Multifunction Phased Array Radar [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2017
We discuss the challenge of managing the Multifunction Phased Array Radar (MPAR) timeline to satisfy the requirements of its multiple missions, with a particular focus on weather surveillance. This command and control (C2) function partitions the available scan time among these missions, exploits opportunities to service multiple missions ...
Mark E. Weber   +2 more
openaire   +4 more sources

Analysis of Onboard Verification Flight Test for the Salinity Satellite Scatterometer

open access: yesSensors, 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   +7 more
doaj   +1 more source

The RealTime challenges for the EISCAT_3D Phased Array Radar system [PDF]

open access: yes, 2016
The RealTime challenges for the EISCAT_3D Phased Array Radar ...
Häggström, Ingemar   +1 more
core   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

open access: yesAdvanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou   +4 more
wiley   +1 more source

Advances on Frequency Diverse Array Radar and Its Applications

open access: yesLeida xuebao, 2018
Unlike the conventional phased array that provides only angle-dependent transmit beampattern, Frequency Diverse Array (FDA) employs a small frequency increment across its array elements to produce automatic beam scanning without requiring phase shifters ...
Wang Wenqin   +3 more
doaj   +1 more source

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