Closed-form multiple invariance ESPRIT

Authors:
Yougen Xu;Zhiwen Liu
Affiliations:
Department of Electronic Engineering, Beijing Institute of Technology, Beijing, People's Republic of China 100081;Department of Electronic Engineering, Beijing Institute of Technology, Beijing, People's Republic of China 100081
Venue:
Multidimensional Systems and Signal Processing
Year:
2007

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Abstract

The multi-least-squares fitting and regularization formulations of the Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) problem are herein presented to provide a new framework for developing the closed-form multiple invariance ESPRIT (MI-ESPRIT) algorithm. The resulting two closed-form MI-ESPRIT algorithms incorporate all invariances in arrays composed of several (more than one) equally translated identical subarrays, and maintain the computational advantage of the standard single invariance ESPRIT.