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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhang, Fuqiang Zhang, Zenghui He, Jin Yu, Wenxian Cao, Rui |
| Abstract | Here, the authors present an improved and fast sparse recovery method for joint estimation of channel errors and direction of arrival (DOA) for square kilometre antennas low-frequency array. Since this array is formed of a large number of antennas and distributed in a very large space, array calibration is a vital step to provide accurate signal information. Then, channel errors are the concerns here, which are assumed to be localised in a priori known interval. To achieve the joint estimation, an approach is proposed by using the alternative optimisation strategy, which theoretically gives convergence results. In detail, the basis pursuit de-noising (BPDN) algorithm and the proximal algorithm are used to estimate the DOA and the array errors, respectively, and the final results are obtained by alternatively solving these two algorithms. Finally, numerical simulation results are presented to demonstrate the effectiveness of their proposed method. |
| Starting Page | 8111 |
| Ending Page | 8115 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 21, Nov (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/21 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0690 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-08-13 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution -Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) |
| Subject Keyword | Accurate Signal Information Antenna Array Array Calibration Array Error Array Signal Processing Basis Pursuit De-noising Algorithm Calibration Channel Error Convex Programming Direction of Arrival Estimation DOA Fast Sparse Recovery Method Improved Recovery Method Iterative Method Joint Estimation Optimisation Optimisation Technique Radiotelescopes Signal Processing And Detection Square Kilometre Antenna Low-frequency Array |
| Content Type | Text |
| Resource Type | Article |
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