Journal
CIRCUITS SYSTEMS AND SIGNAL PROCESSING
Volume 41, Issue 5, Pages 3011-3022Publisher
SPRINGER BIRKHAUSER
DOI: 10.1007/s00034-021-01922-3
Keywords
2D DOA; Spiral array; Source number; Convex optimization
Categories
Funding
- Key-Area Research and Development Program of Guangdong Province [2019B010141002]
- National Natural Science Foundation of China [62001127]
- Guangzhou Municipal Science and Technology Project [202102021077]
Ask authors/readers for more resources
A spiral array is designed in this paper to estimate the two-dimensional direction of arrival (DOA). The use of the fourth-order cumulant and convex optimization improves the estimation accuracy and overcomes the bias caused by finite snapshots.
In this paper, a spiral array is designed to estimate two-dimensional direction of arrival (DOA), which allows a larger spacing between adjacent antennas of the array. The fourth-order cumulant is also utilized to create more virtual antennas, further enlarging the array aperture. The noise resistance of the high-order cumulant can help to construct an improved propagator, and there is no need for any priori knowledge of the source number to estimate the DOAs. With the help of the cumulant, a convex optimization is introduced to improve the estimation accuracy, which can overcome the estimation bias caused by the finite snapshots. Simulation results demonstrate the effectiveness of the proposed estimator.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available