Results 21 to 30 of about 229,198 (350)

Self-cross Phase Calibration Method of Oversized Front Distributed Phased Array Radar

open access: yesLeida xuebao, 2013
For oversized front distributed phased array radar, the conventional phased array radar calibration algorithm can not work. This paper presents the combination of self-calibration and cross-calibration algorithm.
Yan Zhou-jie   +3 more
doaj   +1 more source

Covariance matrix reconstruction and steering vector estimation for robust adaptive transmit/receive beamforming in full phased‐MIMO radar

open access: yesElectronics Letters, 2021
The hybrid phased multiple‐input‐multiple‐output (MIMO) radar with subarray partition can provide the transmit coherent gain of phased array and the waveform diversity of MIMO radar. The current researches mainly focus on the different subarray partition
J. Lu, J. Yang, B. Hou, F. Zhu, G. Liu
doaj   +1 more source

Error Evaluation and Hydrometeor Classification Method of Dual Polarization Phased Array Radar

open access: yes应用气象学报, 2022
Phased array radar is faster in scanning speed than mechanical scanning radar, but due to the influence of antenna structure and attenuation, phased array radar will produce larger system error and random error.
Li Zhe   +4 more
doaj   +1 more source

Millimeter-Wave Phased Arrays in Silicon [PDF]

open access: yes, 2007
Integration of mm-wave multiple-antenna systems on silicon-based processes enables complex, low-cost systems for high-frequency communication and sensing applications.
Natarajan, Arun Sridhar
core   +1 more source

Examination of the effect of array weighting function on radar target detectability [PDF]

open access: yes, 2010
This paper describes a methodology to assess the detectability of targets by anairborne fire control radar operating in a medium PRF mode in the presence of strongground clutter as a function of the transmitting and receiving antenna array ...
Alabaster, Clive M.   +3 more
core   +1 more source

Multi-Antenna Phased Array Radar-Guided Search Resource Optimization Algorithm Based on MADDPG [PDF]

open access: yesJisuanji gongcheng
An optimization algorithm for multi-antenna phased array radar search parameters based on the Multi-Agent Deep Deterministic Policy Gradient (MADDPG) is proposed to address the problem that search parameters of the traditional single-antenna phased array
WANG Teng, HUANG Junsong, WANG Leting, ZHANG Caikun, LI Xiaoyang
doaj   +1 more source

An Efficient Method for Performance Monitoring of Active Phased Array Antennas [PDF]

open access: yes, 2009
Modern synthetic aperture radars (SARs) are equipped with active phased array antennas to electronically generate various antenna beams. The TerraSAR-X satellite is a high resolution SAR system launched in June 2007.
Schwerdt, Marco   +2 more
core   +1 more source

Transmit beampattern design for airborne phased-MIMO radar

open access: yesThe Journal of Engineering, 2019
Airborne phased-MIMO radar based on sub-arrays is investigated that can combine the advantages of both MIMO radar and phased array radar. The transmit beampattern design method for airborne phased-MIMO radar is proposed that can control the transmit beam
Ye Dong, Fengfeng Cheng, Lanying Cao
doaj   +1 more source

The next generation airborne polarimetric Doppler weather radar [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2014
Results from airborne field deployments emphasized the need to obtain concurrently high temporal and spatial resolution measurements of 3-D winds and microphysics.
J. Vivekanandan   +6 more
doaj   +1 more source

A phased array-based method for damage detection and localization in thin plates [PDF]

open access: yes, 2009
A method for damage localization based on the phased array idea has been developed. Four arrays oftransducers are used to perform a beam-forming procedure.
Irina Trendafilova   +7 more
core   +1 more source

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