Results 11 to 20 of about 37,267,212 (171)
Remote Sensing, 2022 Digital beamforming (DBF) TOPS SAR in elevation is a new synthetic aperture radar (SAR) system, which has the advantage of wide swath coverage and a high signal-to-noise ratio (SNR).
Zhiyong Suo +5 more
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Using of Deep Learning in Beamforming Antenna Array [PDF]
Wasit Journal of Engineering SciencesDigital beamforming (DBF) is a crucial technology for large antenna arrays, offering precise control over beam steering. This research introduces a novel method to enhance millimeter wave transmission by incorporating DBF with long-term memory (LSTM ...
Ali Naji +2 more
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Digital beamforming enhancement with LSTM-based deep learning for millimeter wave transmission
Open EngineeringDigital beamforming (DBF) has emerged as a pivotal technology for large-scale antenna arrays, offering precise beam steering control. This study presents an innovative approach to enhance millimeter wave transmission by integrating DBF with long short ...
Naji Ali A. +2 more
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An Advanced Real-Time Internal Calibration Scheme for the DBF-SCORE Spaceborne SAR Systems
Remote SensingBased on Digital Beamforming (DBF) technology, spaceborne SAR systems can achieve high-resolution and wide-swath (HRWS) imaging. When combined with reflector antennas, the DBF-SCORE (Digital Beamforming-SCan On REceive) system also features light weight ...
Yuanbo Jiao +5 more
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Minimizing interference in automotive radar using digital beamforming [PDF]
Advances in Radio Science, 2011 Millimetre wave radar is an essential part of automotive safety functions. A high interference tolerance, especially with other radar sensors, is vital. This paper gives an overview of the motivation, the boundary conditions and related activities in the
C. Fischer +3 more
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IET Radar, Sonar & NavigationA broadband microwave photonic time division multiplexing (TDM) multiple‐input‐multiple‐output (MIMO) radar is proposed in which photonic frequency quadrupling is adopted to generate broadband radar signals and photonic frequency mixing is implemented ...
Yuewen Zhou +3 more
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The High-Resolution Digital-Beamforming Airborne SAR System DBFSAR
Remote Sensing, 2020 Synthetic Aperture Radar (SAR) is an established remote sensing technique that can robustly provide high-resolution imagery of the Earth’s surface. However, current space-borne SAR systems are limited, as a matter of principle, in achieving high azimuth ...
Andreas Reigber +18 more
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天地一体化信息网络, 2021 Due to the characteristics of low earth orbit (LEO) communication satellite system like low propagation loss, small propagation delay and high pointing accuracy, a hybrid architecture-“analog beamforming stage and digital beamforming (DBF) stage” was ...
Rong HU +6 more
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IF-Sampling Digital Beamforming with Bit-Stream Processing. [PDF]
Beamforming in receivers improves signal-to-noise ratio (SNR), and enables spatial filtering of incoming signals, which helps reject interferers. However, power consump-tion, area, and routing complexity needed with an increasing number of elements have ...
Jeong, Jaehun
core +5 more sources
Leida xuebao, 2020 An important issue in a Synthetic Aperture Radar (SAR) system employing Multidimensional Waveform Encoding (MWE) is the fulfillments of Digital BeamForming (DBF) on receive in elevation for a reliable separation of the mutually overlapped echoes from ...
Feng HE +4 more
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