A unified group-sparsity-based framework for wideband sparse spectrum fitting is proposed for wideband direction-of-arrival (DOA) estimation, which is capable of handling both uncorrelated and correlated sources. Then, by making four different assumptions on a priori knowledge about the sources, four variants under the proposed framework are formulated as solutions to the underdetermined DOA estimation problem without the need of employing sparse arrays. As verified by simulations, improved estimation performance can be achieved by the wideband methods compared with narrowband ones, and adopting more a priori information leads to better performance in terms of resolution capacity and estimation accuracy.
Wideband DOA Estimation With Frequency Decomposition via a Unified GS-WSpSF Framework
IEEE Transactions on Aerospace and Electronic Systems ; 60 , 2 ; 2453-2460
2024-04-01
1094983 byte
Article (Journal)
Electronic Resource
English
A unified framework for scene illuminant estimation
British Library Online Contents | 2008
|Unified Route Choice Framework
Transportation Research Record | 2014
|Unified Framework for Training Point Selection and Error Estimation for Surrogate Models
Online Contents | 2015
|