Open AccessWideband signal DOA estimation method based on keystone transform
Author(s) -
Wang Ning,
Zhou Ming,
Zhong Bing,
Li Siming,
Chen Yawei
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0652
Subject(s) - wideband , narrowband , computer science , subspace topology , algorithm , signal (programming language) , monte carlo method , signal subspace , direction of arrival , noise (video) , electronic engineering , mathematics , telecommunications , artificial intelligence , statistics , engineering , antenna (radio) , image (mathematics) , programming language
Here, a wideband signal direction‐of‐arrival (DOA) estimation method was proposed. By applying the keystone transform, the phase difference caused by different frequency is eliminated, and then the narrowband DOA estimation method can be used directly. Compared with the traditional method, the proposed approach can achieve better estimation accuracy than incoherent subspace method and coherent subspace method at low signal‐to‐noise ratio. The theoretical derivation of the method is given. Monte–Carlo simulations are provided to demonstrate the performance of the proposed scheme.