We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
DOA Estimation for Coherent Sources Based on Uniformly Distributed Two Concentric Rings Array.
- Authors
Han, Chuang; Guo, Shenghong; Yan, Ning; Dong, Jingwei; Xing, Bowen
- Abstract
The direction estimation of the coherent source in a uniform circular array is an essential part of the signal processing area of the array, but the traditional uniform circular array algorithm has a low localization accuracy and a poor localization effect on the coherent source. To solve this problem, this paper proposes a two-dimensional direction of arrival (DOA) estimation for the coherent source in broadband. Firstly, the central frequency of the coherent sound source is estimated using the frequency estimation method of the delayed data, and a real-valued beamformer is constructed using the concept of the multiloop phase mode. Then, the cost function in the beam space is obtained. Finally, the cost function is searched in two dimensions to locate the sound source. In this paper, we simulate the DOA of the sound source at different frequencies and signal-to-noise ratios and analyze the resolution of the circular array. The simulation results show that the proposed algorithm can estimate the direction of arrival with high precision and achieve the desired results.
- Subjects
COST functions; FUNCTION spaces; LOCALIZATION (Mathematics); ARRAY processing; AUDIO frequency; SIGNAL-to-noise ratio
- Publication
Sensors (14248220), 2023, Vol 23, Issue 20, p8408
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s23208408