کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
563946 | 875548 | 2008 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Deterministic asymptotic Cramér–Rao bound for the multidimensional harmonic model Deterministic asymptotic Cramér–Rao bound for the multidimensional harmonic model](/preview/png/563946.png)
The harmonic model sampled on a P-dimensional grid contaminated by an additive white Gaussian noise has attracted considerable attention with a variety of applications. This model has a natural interpretation in a P-order tensorial framework and an important question is to evaluate the theoretical lowest variance on the model parameter (angular-frequency, real amplitude and initial phase) estimation. A standard Mathematical tool to tackle this question is the Cramér–Rao bound (CRB) which is a lower bound on the variance of an unbiased estimator, based on Fisher information. So, the aim of this work is to derive and analyze closed-form expressions of the deterministic asymptotic CRB associated with the M-order harmonic model of dimension P with P>1P>1. In particular, we analyze this bound with respect to the variation of parameter P.
Journal: Signal Processing - Volume 88, Issue 12, December 2008, Pages 2869–2877