Abstract
In this paper, two-dimensional (2-D) direction of arrival estimation based on the fourth-order difference co-array (FODCA) is studied. By analyzing the virtual sensor positions in FODCA, the theoretical maximum number of virtual sensors, along with the conditions under which this maximum number is achieved, have been derived. Then, a class of novel array structures, referred to as irrational partitioned circular array (IPCA), is proposed, with its provided DOFs equal to the theoretical maximum number. As demonstrated by the simulations, superior performance in terms of both the number of DOFs and estimation accuracy can be achieved by our proposed IPCA.
| Original language | English |
|---|---|
| Title of host publication | 2024 7th International Conference on Electronics Technology, ICET 2024 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 722-726 |
| Number of pages | 5 |
| Edition | 2024 |
| ISBN (Electronic) | 9798350363951 |
| DOIs | |
| Publication status | Published - 2024 |
| Externally published | Yes |
| Event | 7th International Conference on Electronics Technology, ICET 2024 - Chengdu, China Duration: 17 May 2024 → 20 May 2024 |
Conference
| Conference | 7th International Conference on Electronics Technology, ICET 2024 |
|---|---|
| Country/Territory | China |
| City | Chengdu |
| Period | 17/05/24 → 20/05/24 |
Keywords
- 2-D DOA estimation
- circular array
- fourth-order difference co-array
- non-uniform
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