Results 11 to 20 of about 35,288,445 (167)
The High-Resolution Digital-Beamforming Airborne SAR System DBFSAR [PDF]
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
doaj +2 more sources
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
doaj +1 more source
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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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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A radar extended target angle estimation method based on effective phase clustering
The Journal of Engineering, Volume 2023, Issue 12, December 2023., 2023 Multiple scatter points detected from extended targets in high‐resolution radar systems are often difficult to match with real target points due to uncertain factors such as clutter and system noise. To address this issue, this paper introduces the concept of effective phase and proposes a direction of arrival (DOA) angle estimation method for extended
Shuhao Zhang +4 more
wiley +1 more source
International Journal of Satellite Communications and Networking, Volume 41, Issue 6, Page 515-538, November/December 2023., 2023 The flexibility of modern satellite communication payloads allows for dynamic resource allocation to meet changing user requirements within an increasingly complex decision space. This paper presents three custom hybridized heuristic and mathematical programming algorithms that optimize resource planning for a Geosynchronous Earth Orbit High Throughput
Angus Gaudry, Ryan Li, Vicky Mak‐Hau
wiley +1 more source
Spaceborne Reflector SAR Systems with Digital Beamforming [PDF]
, 2012 Spaceborne Synthetic Aperture Radar (SAR) imaging enters an era where increasingly short revisit times, or large swath widths, respectively, and high spatial resolutions are requested.
Patyuchenko, Anton +4 more
core +1 more source
A GPU‐based real‐time processing system for frequency division multiple‐input‐multiple‐output radar
IET Radar, Sonar &Navigation, Volume 17, Issue 10, Page 1524-1537, October 2023., 2023 This figure describes the proposed GPU parallel algorithms of frequency division MIMO radar. The proposed method executes various kernel functions in a corresponding maximum parallel units, meeting the real‐time requirement. Abstract Multiple‐Input‐Multiple‐Output (MIMO) radar has the characteristic of multiple antenna channels, bringing on a big data ...
Gaogao Liu +6 more
wiley +1 more source
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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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 The radio frequency interference (RFI) and deceptive jamming (DJ), as two major external threats to synthetic aperture radar (SAR) systems, can greatly reduce the readability and veracity of the obtained SAR images.
Guoli Nie +4 more
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