2D scattering centre intensity pre‐estimated method based on matrix pencil method. Issue 19 (30th July 2019)

• Record Type: Journal Article
• Authors: Wang, Jun; Lu, Yao; Wei, Shaoming
• Is Part Of: Journal of engineering. Volume 2020:Issue 19(2020)
• Page Start: 6160
• Page End: 6164
• Publication Date: 2019-07-30
• Subjects: matrix algebra -- radar imaging -- principal component analysis -- electromagnetic wave scattering -- least squares approximations -- parameter estimation -- geometrical theory of diffraction -- Hankel matrices; pre‐estimated reflection intensity -- scattering centre number -- scattering centres -- 2D scattering centre intensity pre‐estimated method -- matrix pencil method -- UWB scattering centre parameter estimation -- target classification -- identification -- novel 2D scattering centre parameter estimation algorithm -- microwave chamber target -- microwave chamber measured data -- position parameter -- type parameter -- square method; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2019.0215
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : The accuracy of ultra wide band (UWB) scattering centre parameter estimation is the key bases in the study of target classification and identification. A novel 2D scattering centre parameter estimation algorithm for microwave chamber target is presented here. First, by using GTD model, this method constructs the microwave chamber measured data. Second, using matrix pencil method to build Hankel Matrix as a mathematic progress to estimate position parameter of scattering centres. Third, the type parameter and reflection intensity are estimated based on the least square method and principal components analysis. Using pre‐estimated reflection intensity and clean technique to correctly determine scattering centre number and precisely estimate the reflection intensity of every scattering centres even if the intensity gap between the scattering centres is huge. The simulation results show that this novel approach can accurately and effectively determine the number and the parameters of the scattering centres. The Cramer–Rao lower bound (CRLB) is also given.