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| Content Provider | IET Digital Library |
|---|---|
| Author | Wang, Zheng Xiaofei, Zhang Huapu, Sun Renzheng, Cao |
| Abstract | The problem of direction of arrival (DOA) estimation of non-circular (NC) signal for non-uniform linear array is investigated. A generalised-ESPRIT (GESPRIT) algorithm can be treated as an improvement of ESPRIT algorithm and the inter-elements spacing of the array geometry can be uniform or non-uniform within a half wavelength. The authors combine the GESPRIT algorithm and the NC property, and propose an NC-GESPRIT algorithm to obtain the DOAs of NC signals, which requires spectrum peak searching. Moreover, a computationally efficient search-free root NC-GESPRIT algorithm, which is based on polynomial rooting, is also proposed to depress the computational cost. The proposed NC-GESPRIT algorithms have much better estimation performance than the conventional GESPRIT algorithm and it can detect 2M − 1 sources with only M sensors due to the NC property. Furthermore, the proposed algorithms can work well without estimating NC phase. The effectiveness and improvement of the proposed algorithms will be proved in the following simulation results. |
| Starting Page | 736 |
| Ending Page | 744 |
| Page Count | 9 |
| ISSN | 17518784 |
| Volume Number | 11 |
| e-ISSN | 17518792 |
| Issue Number | Issue 5, May (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rsn/11/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2016.0349 |
| Journal | IET Radar, Sonar & Navigation |
| Publisher Date | 2016-11-28 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Algebra Array Geometry Array Signal Processing Combinatorial Mathematics Computational Cost Depression Direction of Arrival Estimation Geometry GESPRIT Algorithm InterElement Spacing NC Property Noncircular Generalised-ESPRIT Algorithm Noncircular Signal Direction-of-arrival Estimation Problem Polynomial Polynomial Rooting Search-free Root NC-GESPRIT Algorithm Signal Processing And Detection Signal Processing Theory Spectrum Peak Searching |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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