Title :
On eigenpolynomials for 2-D sinusoidal signals
Author :
Stoica, Petre ; Li, Jian
Author_Institution :
Syst. & Control Group, Uppsala Univ., Sweden
Abstract :
We show that the main result on eigenpolynomials for two-dimensional (2-D) sinusoidal signals in a recent letter by Li and Cheng (see ibid., vol.5, p.71-3, March 1998) is incorrect, and hence the characterization of 2-D eigenpolynomials is still an open problem. Furthermore, we state a related problem that is also open and hence awaiting a (satisfactory) solution.
Keywords :
eigenvalues and eigenfunctions; multidimensional signal processing; parameter estimation; polynomials; signal representation; 2D sinusoidal signals; eigenpolynomials; parameter estimation; signal representation; Control systems; Frequency; Parameter estimation; Polynomials; Signal processing; Two dimensional displays; Writing;
Journal_Title :
Signal Processing Letters, IEEE
