Analysis of ESPRIT based joint angle-frequency estimation
نویسندگان
چکیده
ALYSIS OF ESPRIT BASED JOINT ANGLE-FREQUENCY ESTIMATION A weke N. Lemma , Alle-Jan van der Veen and Ed F. Deprettere Delft University of Technology, Faculty of Information Technology Mek elweg 4, 2628 CD Delft, The Netherlands [email protected] ABSTRACT High-resolution parameter estimation techniques have recently been applied to jointly estimate multiple signal parameters. In this work, we consider the problem of determining the directions and center frequencies of a number of narrow-band sources in a certain frequency band of interest. We present a joint angle-frequency estimation method, based on the multidimensional ESPRIT algorithm. A perturbation error analysis gives bounds on the parameter estimates, and provides optimal values for the temporal and spatial smoothing parameters. The analysis is shown to be consistent with simulation results.
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