Clutter-Sensing-Driven Space-Time Adaptive Processing Approach for Airborne Sub-Array-Level Digital Array
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| Publicado en: | Remote Sensing vol. 16, no. 23 (2024), p. 4401 |
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| Otros Autores: | , , , , |
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MDPI AG
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| Acceso en línea: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| 001 | 3144158321 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 2072-4292 | ||
| 024 | 7 | |a 10.3390/rs16234401 |2 doi | |
| 035 | |a 3144158321 | ||
| 045 | 2 | |b d20240101 |b d20241231 | |
| 084 | |a 231556 |2 nlm | ||
| 100 | 1 | |a Wu, Youai |u The National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China; <email>wya@stu.xidian.edu.cn</email> (Y.W.); <email>likang@xidian.edu.cn</email> (K.L.); <email>hwliu@xidian.edu.cn</email> (H.L.) | |
| 245 | 1 | |a Clutter-Sensing-Driven Space-Time Adaptive Processing Approach for Airborne Sub-Array-Level Digital Array | |
| 260 | |b MDPI AG |c 2024 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a Sub-array-level digital arrays effectively diminish the computational complexity and sample demand of space-time adaptive processing (STAP), thus finding extensive applications in many airborne platforms. Nonetheless, airborne sub-array-level digital array radar still encounters pronounced performance deterioration in highly heterogeneous clutter environments due to inadequate training samples. To address this issue, a clutter-sensing-driven STAP approach for airborne sub-array-level digital arrays is proposed in this paper. Firstly, we derive a signal model of sub-array-level clutter sensing in detail and then further analyze the influence of the sidelobe characteristics of the conventional sub-array joint beam on clutter sensing. Secondly, a sub-array joint beam optimization model is proposed, which optimizes the sub-array joint beam into a wide beam with flat-top characteristics to improve the clutter-sensing performance in the beam sidelobe region. Finally, we decompose the complex optimization problem into two subproblems and then relax them into the low sidelobe-shaped beam pattern synthesisproblem and second-order cone programming problem, which can be effectively solved. The effectiveness of the proposed approach is validated in a real clutter environment through numerical experiments. | |
| 653 | |a Sidelobes | ||
| 653 | |a Radar arrays | ||
| 653 | |a Adaptive sampling | ||
| 653 | |a Knowledge | ||
| 653 | |a Optimization | ||
| 653 | |a Sensors | ||
| 653 | |a Spacetime | ||
| 653 | |a Methods | ||
| 653 | |a Performance degradation | ||
| 653 | |a Clutter | ||
| 653 | |a Arrays | ||
| 653 | |a Complexity | ||
| 653 | |a Airborne radar | ||
| 653 | |a Sidelobe reduction | ||
| 653 | |a Space-time adaptive processing | ||
| 653 | |a Radar systems | ||
| 653 | |a Optimization models | ||
| 700 | 1 | |a Jiu, Bo |u The National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China; <email>wya@stu.xidian.edu.cn</email> (Y.W.); <email>likang@xidian.edu.cn</email> (K.L.); <email>hwliu@xidian.edu.cn</email> (H.L.) | |
| 700 | 1 | |a Pu, Wenqiang |u Shenzhen Research Institute of Big Data, The Chinese University of Hong Kong, Shenzhen 518172, China; <email>wenqiangpu@cuhk.edu.cn</email> | |
| 700 | 1 | |a Zheng, Hao |u The College of Electronic Information Engineering, Inner Mongolia University, Hohhot 010010, China; <email>zhenghao1994@imu.edu.cn</email> | |
| 700 | 1 | |a Kang, Li |u The National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China; <email>wya@stu.xidian.edu.cn</email> (Y.W.); <email>likang@xidian.edu.cn</email> (K.L.); <email>hwliu@xidian.edu.cn</email> (H.L.) | |
| 700 | 1 | |a Liu, Hongwei |u The National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China; <email>wya@stu.xidian.edu.cn</email> (Y.W.); <email>likang@xidian.edu.cn</email> (K.L.); <email>hwliu@xidian.edu.cn</email> (H.L.) | |
| 773 | 0 | |t Remote Sensing |g vol. 16, no. 23 (2024), p. 4401 | |
| 786 | 0 | |d ProQuest |t Advanced Technologies & Aerospace Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3144158321/abstract/embedded/75I98GEZK8WCJMPQ?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/3144158321/fulltextwithgraphics/embedded/75I98GEZK8WCJMPQ?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3144158321/fulltextPDF/embedded/75I98GEZK8WCJMPQ?source=fedsrch |