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| Content Provider | IET Digital Library |
|---|---|
| Author | Meng, Xiang Tian Xue, Jing Hong Yan, Feng Gang Yan, Xue Wei |
| Abstract | In this study, the problem of low-complexity direction-of-arrival (DOA) estimation is addressed, and a novel real-valued propagator method (PM) is presented with a uniform linear array. The covariance matrix is divided into two subarrays and an equivalent noise subspace is obtained by exploiting the standard PM algorithm without eigenvalue decomposition. By a coordinate mapping technique, the complex PM cost function has been converted into a real-valued polynomial whose order only rely on the number of arrays. Using such a mathematical fact, source DOAs can be estimated by polynomial rooting instead of peak searching. The proposed method is able to reduce significant complexity with comparable root-mean-square error performance to the standard PM, which is finally verified by numerical simulations. |
| Starting Page | 7792 |
| Ending Page | 7795 |
| Page Count | 4 |
| 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.2019.0735 |
| 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 License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Algebra Array Signal Processing Comparable Root-mean-square Error Performance Complex PM Cost Function Coordinate Mapping Technique Covariance Matrices Covariance Matrix Direction of Arrival Estimation Eigen Values And Eigen Function Eigenvalue Decomposition Equivalent Noise SubSpace Fast DOA Estimation Interpolation And Function Approximation Low-complexity Direction-of-arrival Estimation Mean Square Error Method Numerical Analysis Polynomial Polynomial Rooting Real-valued Polynomial Whose Order Real-valued Propagator Method Signal Processing And Detection Significant Complexity Source DOAs Standard PM Algorithm Uniform Linear Array |
| Content Type | Text |
| Resource Type | Article |
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