Abstract
Sparse antenna arrays like multi-level prime arrays (MLPA) and MLPA with compressed subarray (MLPAC) use multiple uniform linear subarrays where the number of elements in the subarrays is pairwise coprime integer. Both configurations have large degrees of freedom (DOF), i.e. large number of consecutive lags and few/or no holes in the difference coarray. MLPA and MLPAC require a small aperture size compared with nested and coprime arrays. This paper derives the Cramér-Rao bound (CRB) of the MLPA and MLPAC based on the second order difference coarray, when the number of estimated sources is larger than the number of antenna elements. Simulation results confirm the derived CRB using MUSIC algorithm.
| Original language | English |
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| Title of host publication | 2024 IEEE International Mediterranean Conference on Communications and Networking, MeditCom 2024 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 518-522 |
| Number of pages | 5 |
| ISBN (Electronic) | 9798350309485 |
| DOIs | |
| State | Published - 2024 |
| Event | 2024 IEEE International Mediterranean Conference on Communications and Networking, MeditCom 2024 - Madrid, Spain Duration: 8 Jul 2024 → 11 Jul 2024 |
Publication series
| Name | 2024 IEEE International Mediterranean Conference on Communications and Networking, MeditCom 2024 |
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Conference
| Conference | 2024 IEEE International Mediterranean Conference on Communications and Networking, MeditCom 2024 |
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| Country/Territory | Spain |
| City | Madrid |
| Period | 8/07/24 → 11/07/24 |
Bibliographical note
Publisher Copyright:© 2024 IEEE.
Keywords
- Degrees of freedom
- Difference coarray
- Direction-of-arrival estimation
- Multi-level prime array
- Multi-level prime array with compressed subarray
ASJC Scopus subject areas
- Computer Networks and Communications
- Signal Processing
- Information Systems and Management
- Control and Optimization
- Modeling and Simulation