Robust Adaptive Null Broadening Method Based on FDA-MIMO Radar
Beamforming plays an important role in the array radar anti-interference. However, the interference targets with fast speed may move out of the narrow null area of the beampattern. A null broadening method with robust adaptive beamforming for frequency diverse array (FDA)-multiple-input and multiple...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9201438/ |
| _version_ | 1828909979844739072 |
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| author | Zihang Ding Junwei Xie Bo Wang Haowei Zhang |
| author_facet | Zihang Ding Junwei Xie Bo Wang Haowei Zhang |
| author_sort | Zihang Ding |
| collection | DOAJ |
| description | Beamforming plays an important role in the array radar anti-interference. However, the interference targets with fast speed may move out of the narrow null area of the beampattern. A null broadening method with robust adaptive beamforming for frequency diverse array (FDA)-multiple-input and multiple-output (MIMO) systems is proposed in this paper. The projection preprocessing and windowing functions are applied to obtain stable beampatterns. Then, a novel null broadening method based on the covariance matrix reconstruction is realized by setting artificial fluctuations around each actual jammer. Finally, a new convex optimization model is established and solved to estimate the desired steering vector. Numerical simulations results verify the effectiveness of the proposed method. |
| first_indexed | 2024-12-13T18:36:08Z |
| format | Article |
| id | doaj.art-033fce9854df4c7ea53de18a01ab8fd9 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T18:36:08Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-033fce9854df4c7ea53de18a01ab8fd92022-12-21T23:35:21ZengIEEEIEEE Access2169-35362020-01-01817797617798310.1109/ACCESS.2020.30256029201438Robust Adaptive Null Broadening Method Based on FDA-MIMO RadarZihang Ding0https://orcid.org/0000-0002-8222-1004Junwei Xie1Bo Wang2Haowei Zhang3https://orcid.org/0000-0001-8786-6736Air and Missile Defense College, Air Force Engineering University, Xi’an, ChinaAir and Missile Defense College, Air Force Engineering University, Xi’an, ChinaAir and Missile Defense College, Air Force Engineering University, Xi’an, ChinaAir and Missile Defense College, Air Force Engineering University, Xi’an, ChinaBeamforming plays an important role in the array radar anti-interference. However, the interference targets with fast speed may move out of the narrow null area of the beampattern. A null broadening method with robust adaptive beamforming for frequency diverse array (FDA)-multiple-input and multiple-output (MIMO) systems is proposed in this paper. The projection preprocessing and windowing functions are applied to obtain stable beampatterns. Then, a novel null broadening method based on the covariance matrix reconstruction is realized by setting artificial fluctuations around each actual jammer. Finally, a new convex optimization model is established and solved to estimate the desired steering vector. Numerical simulations results verify the effectiveness of the proposed method.https://ieeexplore.ieee.org/document/9201438/Null broadeningfrequency diverse array-multiple-input and multiple-output (FDA-MIMO)robust beamforming |
| spellingShingle | Zihang Ding Junwei Xie Bo Wang Haowei Zhang Robust Adaptive Null Broadening Method Based on FDA-MIMO Radar IEEE Access Null broadening frequency diverse array-multiple-input and multiple-output (FDA-MIMO) robust beamforming |
| title | Robust Adaptive Null Broadening Method Based on FDA-MIMO Radar |
| title_full | Robust Adaptive Null Broadening Method Based on FDA-MIMO Radar |
| title_fullStr | Robust Adaptive Null Broadening Method Based on FDA-MIMO Radar |
| title_full_unstemmed | Robust Adaptive Null Broadening Method Based on FDA-MIMO Radar |
| title_short | Robust Adaptive Null Broadening Method Based on FDA-MIMO Radar |
| title_sort | robust adaptive null broadening method based on fda mimo radar |
| topic | Null broadening frequency diverse array-multiple-input and multiple-output (FDA-MIMO) robust beamforming |
| url | https://ieeexplore.ieee.org/document/9201438/ |
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