Across-Beam Signal Integration Approach with Ubiquitous Digital Array Radar for High-Speed Target Detection Article Swipe
Le Wang
,
Haihong Tao
,
Aodi Yang
,
Fusen Yang
,
Xiaoyu Xu
,
Huihui Ma
,
Jia Su
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/rs17152597
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/rs17152597
Ubiquitous digital array radar (UDAR) extends the integration time of moving targets by deploying a wide transmitting beam and multiple narrow receiving beams to cover the entire observed airspace. By exchanging time for energy, it effectively improves the detection ability for weak targets. Nevertheless, target motion introduces severe across-range unit (ARU), across-Doppler unit (ADU), and across-beam unit (ABU) effects, dispersing target energy across the range–Doppler-beam space. This paper proposes a beam domain angle rotation compensation and keystone-matched filtering (BARC-KTMF) algorithm to address the “three-crossing” challenge. This algorithm first corrects ABU by rotating beam–domain coordinates to align scattered energy into the final beam unit, reshaping the signal distribution pattern. Then, the KTMF method is utilized to focus target energy in the time-frequency domain. Furthermore, a special spatial windowing technique is developed to improve computational efficiency through parallel block processing. Simulation results show that the proposed approach achieves an excellent signal-to-noise ratio (SNR) gain over the typical single-beam and multi-beam long-time coherent integration (LTCI) methods under low SNR conditions. Additionally, the presented algorithm also has the capability of coarse estimation for the target incident angle. This work extends the LTCI technique to the beam domain, offering a robust framework for high-speed weak target detection.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/rs17152597
- OA Status
- gold
- References
- 48
- Related Works
- 10
- OpenAlex ID
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https://openalex.org/W4412833313Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/rs17152597Digital Object Identifier
- Title
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Across-Beam Signal Integration Approach with Ubiquitous Digital Array Radar for High-Speed Target DetectionWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-07-25Full publication date if available
- Authors
-
Le Wang, Haihong Tao, Aodi Yang, Fusen Yang, Xiaoyu Xu, Huihui Ma, Jia SuList of authors in order
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https://doi.org/10.3390/rs17152597Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3390/rs17152597Direct OA link when available
- Concepts
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Computer science, Beam (structure), Energy (signal processing), SIGNAL (programming language), Radar, Range (aeronautics), Electronic engineering, Optics, Real-time computing, Physics, Telecommunications, Engineering, Aerospace engineering, Programming language, Quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
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48Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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