We derive the asymptotic distribution of the null spectrum of the well-known Multiple Signal Classification (MUSIC) in its computational Time-Reversal (TR) form. The result pertains to a single-frequency noncolocated multistatic scenario and several TR-MUSIC variants are investigated here. The analysis builds upon the first-order perturbation of the singular value decomposition and allows a simple characterization of null-spectrum moments (up to the second order). This enables a comparison in terms of spectrums stability. Finally, a numerical analysis is provided to confirm the theoretical findings.
Noncolocated Time-Reversal MUSIC: High-SNR Distribution of Null Spectrum / Ciuonzo, Domenico; Rossi, Pierluigi Salvo. - In: IEEE SIGNAL PROCESSING LETTERS. - ISSN 1070-9908. - 24:4(2017), pp. 397-401. [10.1109/LSP.2017.2661246]
Noncolocated Time-Reversal MUSIC: High-SNR Distribution of Null Spectrum
Ciuonzo, Domenico;
2017
Abstract
We derive the asymptotic distribution of the null spectrum of the well-known Multiple Signal Classification (MUSIC) in its computational Time-Reversal (TR) form. The result pertains to a single-frequency noncolocated multistatic scenario and several TR-MUSIC variants are investigated here. The analysis builds upon the first-order perturbation of the singular value decomposition and allows a simple characterization of null-spectrum moments (up to the second order). This enables a comparison in terms of spectrums stability. Finally, a numerical analysis is provided to confirm the theoretical findings.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
