Results 21 to 30 of about 37,267,212 (171)
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
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
Experimental Performance Investigation of Digital Beamforming on Synthetic Aperture Radar [PDF]
, 2008 In this paper, we present the experimental results of a Digital Beam Forming (DBF) Synthetic Aperture Radar (SAR) performance on the purpose of the High- Resolution Wide-Swath (HRWS) SAR concept.
Junghyo Kim +5 more
core +1 more source
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
doaj +1 more source
Digital Beamforming on Receive: Techniques and Optimization Strategies for High-Resolution Wide-Swath SAR Imaging [PDF]
, 2009 Synthetic Aperture Radar (SAR) is a well-proven imaging technique for remote sensing of the earth. However, conventional SAR systems are not capable to fulfill the increasing demands for im-proved spatial resolution and wider swath coverage.
Alberto Moreira +5 more
core +1 more source
ERROR ESTIMATION AND UNAMBIGUOUS RECONSTRUCTION FOR CHINESE FIRST DUAL-CHANNEL SPACEBORNE SAR IMAGING [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Multichannel synthetic aperture radar (SAR) is a significant breakthrough to the inherent limitation between high-resolution and wide-swath (HRWS) faced with conventional SAR.
T. Jin, T. Jin, X. Qiu, D. Hu, C. Ding
doaj +1 more source
Applied Sciences, 2020 In this paper, the eight schemes for aircraft wireless sensor networks are investigated, which are single-hop array beamforming schemes (including analog beamforming (ABF), and digital beamforming (DBF)), non-cooperative schemes (including single-hop and
Seung-Hwan Kim +2 more
doaj +1 more source
A Single Receive Channel DBF Method for Ultra-Wideband Radar
IEEE Access, 2019 In this paper, we present a space code agility-based single receive channel digital beamforming (DBF) method for ultra-wideband radar. The proposed single channel DBF method outperforms the existing single channel DBF method with a space-time coded array
Liu Nan +3 more
doaj +1 more source
Remote Sensing, 2022 To achieve high-resolution and wide-swath (HRWS) imaging, a space-time waveform-encoding (STWE) spaceborne synthetic aperture radar (SAR) system is adopted.
Sheng Chang +7 more
doaj +1 more source