کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4973840 1451711 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the asymptotic distribution of Time-Reversal MUSIC null spectrum
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
On the asymptotic distribution of Time-Reversal MUSIC null spectrum
چکیده انگلیسی
In this paper we derive the asymptotic (viz. high signal-to-noise ratio) distribution of the null spectrum of the well-known Multiple Signal Classification (MUSIC) in its computational Time-Reversal (TR) form. The analysis builds upon classical results on the first-order perturbation of the singular value decomposition. These allow to obtain a simple characterization of the moments (up to the second order) of the spectrum and thus provide also a consistent form of the asymptotic “noisiness” measure in the TR case. The present study refers to a single-frequency case in a multistatic co-located scenario. The proposed analysis also enables a simple comparison of TR-MUSIC null-spectrum properties when linear and non linear (i.e. with mutual interaction effects) scattering models are assumed. Finally, a numerical analysis is provided to confirm the theoretical findings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Digital Signal Processing - Volume 69, October 2017, Pages 50-58
نویسندگان
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