Results 21 to 30 of about 28,873 (303)

Microwave Photonic Array Radars

open access: yesIEEE Journal of Microwaves, 2021
Phased array radars have remarkable advantages over radars with single-element antenna in terms of agility, flexibility, robustness, and reconfigurability.
Shilong Pan   +3 more
doaj   +1 more source

Review of the Evolution of Phased-Array Radar [PDF]

open access: yesSHS Web of Conferences, 2022
Ever since the human race discovered how bats locate, it has never stopped exploring the use of various waves to analyse and determine the position of objects to be detected.
Wei Yuhang
doaj   +1 more source

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

open access: yes, 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.   +5 more
core   +1 more source

Extraction method of wide-band phased array radar signals based on pulse amplitude characteristic

open access: yesThe Journal of Engineering, 2019
Wide-band phased array radar is the primary focus in electronic countermeasure reconnaissance, and prior extraction of such radar signals in the interleaved pulse data intercepted by the receiver has important military significance.
Meng Xianghao, An Yongwang, Li Pengyong
doaj   +1 more source

Methods for determining the phase difference of the output signals for the receiving elements of a phased antenna array in a radiophoton circuit with parallel and series pairwise connection of electro-optical modulators [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
Obtaining accurate phase values of the output signals for the receiving elements of a phased array antenna is one of the crucial issues relating to radio-photon technologies in radar and radio communication.
Yaroslav N. Gusenitsa   +3 more
doaj   +1 more source

Polarisation-space-time adaptive processing for heterogeneous clutter suppression of airborne-phased array radar

open access: yesThe Journal of Engineering, 2019
Conventional space-time adaptive processing (STAP) achieves clutter suppression by combining spatial signals and the temporal pulses. However, extreme slow-moving target cannot be effectively detected by space-time joint filtering in ambiguous and non ...
Yuze Sun, Jian Yang, Xiaopeng Yang
doaj   +1 more source

Imaging ionospheric inhomogeneities using spaceborne synthetic aperture radar [PDF]

open access: yes, 2011
We present a technique and results of 2-D imaging of Faraday rotation and total electron content using spaceborne L band polarimetric synthetic aperture radar (PolSAR).
Chapman, B.   +4 more
core   +2 more sources

Multi-Beam Radar Communication Integrated System Design

open access: yesInformation, 2023
In this paper, we propose a multi-beam integrated radar and communication scheme using phased-array antenna, in which the same LFM-BPSK integrated waveform is used for both the radar and the communication beams.
Hao Ma, Jun Wang, Xin Sun, Wenxin Jin
doaj   +1 more source

Climatological characteristics and influencing factors of precipitation from landfalling tropical cyclones in East China

open access: yesFrontiers in Earth Science
IntroductionThis study investigates the precipitation characteristics of tropical cyclones (TCs) making landfall in East China from 1960 to 2010.MethodsStatistical and factor analysis methodologies were employed, leveraging TC precipitation separation ...
Longbin Ye   +4 more
doaj   +1 more source

Ship-Borne Phased Array Radar Using GA Based Adaptive α-β-γ Filter for Beamforming Compensation and Air Target Tracking

open access: yesInternational Journal of Antennas and Propagation, 2015
Beam pointing error caused by ship motion over the ocean affects the tracking performance of the ship-borne phased array radar. Due to the dynamic nature of the sea environments, the ship-borne phased array radar must be able to compensate for the ship’s
J. Mar, Chen-Chih Liu, M. B. Basnet
doaj   +1 more source

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