Wideband signal DOA estimation method based on keystone transform. Issue 21 (25th September 2019)

• Record Type: Journal Article
• Authors: Wang, Ning; Zhou, Ming; Zhong, Bing; Li, Siming; Chen, Yawei
• Is Part Of: Journal of engineering. Volume 2019:Issue 21(2019)
• Page Start: 7713
• Page End: 7716
• Publication Date: 2019-09-25
• Subjects: array signal processing -- Monte Carlo methods -- direction‐of‐arrival estimation; incoherent subspace method -- coherent subspace method -- low signal‐to‐noise ratio -- wideband signal DOA estimation method -- keystone -- signal direction‐of‐arrival estimation method -- phase difference -- narrowband DOA estimation method -- estimation accuracy; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2019.0652
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : 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.