New techniques and structures for array signal processing with enhanced robustness
223 p.
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| Other Authors: | |
| Format: | Thesis |
| Published: |
2011
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| Online Access: | https://hdl.handle.net/10356/46851 |
| _version_ | 1811697067735646208 |
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| author | Zhang, Ying |
| author2 | Ng Boon Poh |
| author_facet | Ng Boon Poh Zhang, Ying |
| author_sort | Zhang, Ying |
| collection | NTU |
| description | 223 p. |
| first_indexed | 2024-10-01T07:49:22Z |
| format | Thesis |
| id | ntu-10356/46851 |
| institution | Nanyang Technological University |
| last_indexed | 2024-10-01T07:49:22Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/468512023-07-04T17:07:41Z New techniques and structures for array signal processing with enhanced robustness Zhang, Ying Ng Boon Poh School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing 223 p. The content of this thesis comprises original research work on the investigations of new structures and algorithms to enhance robustness of array signal processing. To suppress the high sidelobe level of the Minimum Variance and Distortionless Response (MVDR) beamformer, two beamformers imposed with sparse constraint on the beampattern are proposed. In the first algorithm, the sparse constraint is imposed on the beampatterns of the beamformer with respect to interference directions, which results in a beamforming algorithm with lower sidelobe level and better robustness against look direction mismatch. When array imperfection is taken into account, a modified algorithm is proposed in order to improve the performance of the beamformer when the interference signals are not located perfectly at the presumed directions. The modified algorithm maintains distortionless response in a wide angular range. It has been demonstrated by computer simulations that the proposed algorithms are valid for sidelobe suppression. Their robustness against steering vector error is also verified. DOCTOR OF PHILOSOPHY (EEE) 2011-12-23T10:01:04Z 2011-12-23T10:01:04Z 2010 2010 Thesis Zhang, Y. (2010). New techniques and structures for array signal processing with enhanced robustness. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/46851 10.32657/10356/46851 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Zhang, Ying New techniques and structures for array signal processing with enhanced robustness |
| title | New techniques and structures for array signal processing with enhanced robustness |
| title_full | New techniques and structures for array signal processing with enhanced robustness |
| title_fullStr | New techniques and structures for array signal processing with enhanced robustness |
| title_full_unstemmed | New techniques and structures for array signal processing with enhanced robustness |
| title_short | New techniques and structures for array signal processing with enhanced robustness |
| title_sort | new techniques and structures for array signal processing with enhanced robustness |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing |
| url | https://hdl.handle.net/10356/46851 |
| work_keys_str_mv | AT zhangying newtechniquesandstructuresforarraysignalprocessingwithenhancedrobustness |