A Reduced Sparse Dictionary Reconstruction Algorithm Based on Grid Selection
-д хадгалсан:
| -д хэвлэсэн: | Electronics vol. 13, no. 5 (2024), p. 874 |
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| Үндсэн зохиолч: | |
| Бусад зохиолчид: | , , , |
| Хэвлэсэн: |
MDPI AG
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| Нөхцлүүд: | |
| Онлайн хандалт: | Citation/Abstract Full Text + Graphics Full Text - PDF |
| Шошгууд: |
Шошго байхгүй, Энэхүү баримтыг шошголох эхний хүн болох!
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MARC
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| 022 | |a 2079-9292 | ||
| 024 | 7 | |a 10.3390/electronics13050874 |2 doi | |
| 035 | |a 2955507154 | ||
| 045 | 2 | |b d20240101 |b d20241231 | |
| 084 | |a 231458 |2 nlm | ||
| 100 | 1 | |a Gao, Zhiqi |u College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010080, China; <email>gzqngd@imut.edu.cn</email> (Z.G.); <email>20211800120@imut.edu.cn</email> (C.Z.); <email>xuwei1983@imut.edu.cn</email> (W.X.); <email>wxtan@imut.edu.cn</email> (W.T.); Inner Mongolia Key Laboratory of Radar Technology and Application, Hohhot 010051, China | |
| 245 | 1 | |a A Reduced Sparse Dictionary Reconstruction Algorithm Based on Grid Selection | |
| 260 | |b MDPI AG |c 2024 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a A sparse dictionary reconstruction algorithm based on grid selection is introduced to solve the grid mismatch when using the sparse recovery space time adaptive processing (SR-STAP) algorithm. First, the atom most closely related to clutter is selected from the traditional dictionary through the spectral value dimensionality reduction method. The local mesh is divided around the selected atoms to create mesh cells, and the mesh cells that are most likely to appear in the real clutter points are judged according to the local selection iteration criteria. In this way, the mesh spacing is refined, the local mesh selection is carried out step by step, and the optimal atoms in the local region are constantly adjusted and selected to narrow the search region until the iteration termination condition is met. Finally, the space-time plane is divided using a novel meshing technique that centers around the optimal atom. By removing atoms beyond the maximum range of spatial and Doppler frequencies, the simplified sparse dictionary can overcome the mesh mismatch problem. The simulation results demonstrate that the algorithm enhances the sparse recovery accuracy of clutter space-time spectrum, mitigates the mesh mismatch effect, and boosts STAP performance. | |
| 653 | |a Finite element method | ||
| 653 | |a Dictionaries | ||
| 653 | |a Accuracy | ||
| 653 | |a Optimization | ||
| 653 | |a Signal processing | ||
| 653 | |a Recovery | ||
| 653 | |a Convex analysis | ||
| 653 | |a Spacetime | ||
| 653 | |a Methods | ||
| 653 | |a Clutter | ||
| 653 | |a Algorithms | ||
| 653 | |a Reconstruction | ||
| 653 | |a Airborne radar | ||
| 653 | |a Space-time adaptive processing | ||
| 653 | |a Adaptive algorithms | ||
| 700 | 1 | |a Zhao, Caimei |u College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010080, China; <email>gzqngd@imut.edu.cn</email> (Z.G.); <email>20211800120@imut.edu.cn</email> (C.Z.); <email>xuwei1983@imut.edu.cn</email> (W.X.); <email>wxtan@imut.edu.cn</email> (W.T.); Inner Mongolia Key Laboratory of Radar Technology and Application, Hohhot 010051, China | |
| 700 | 1 | |a Huang, Pingping |u College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010080, China; <email>gzqngd@imut.edu.cn</email> (Z.G.); <email>20211800120@imut.edu.cn</email> (C.Z.); <email>xuwei1983@imut.edu.cn</email> (W.X.); <email>wxtan@imut.edu.cn</email> (W.T.); Inner Mongolia Key Laboratory of Radar Technology and Application, Hohhot 010051, China | |
| 700 | 1 | |a Xu, Wei |u College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010080, China; <email>gzqngd@imut.edu.cn</email> (Z.G.); <email>20211800120@imut.edu.cn</email> (C.Z.); <email>xuwei1983@imut.edu.cn</email> (W.X.); <email>wxtan@imut.edu.cn</email> (W.T.); Inner Mongolia Key Laboratory of Radar Technology and Application, Hohhot 010051, China | |
| 700 | 1 | |a Tan, Weixian |u College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010080, China; <email>gzqngd@imut.edu.cn</email> (Z.G.); <email>20211800120@imut.edu.cn</email> (C.Z.); <email>xuwei1983@imut.edu.cn</email> (W.X.); <email>wxtan@imut.edu.cn</email> (W.T.); Inner Mongolia Key Laboratory of Radar Technology and Application, Hohhot 010051, China | |
| 773 | 0 | |t Electronics |g vol. 13, no. 5 (2024), p. 874 | |
| 786 | 0 | |d ProQuest |t Advanced Technologies & Aerospace Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/2955507154/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/2955507154/fulltextwithgraphics/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/2955507154/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |