The time-domain reconstruction method of Giannakis [J. Opt. Soc. Am. A 6,682 (1989), Subsec. 3.B] is correct and was derived under the assumption that a matrix containing certain triple-correlation lags has full rank. Although the counterexample of Tugnait [J. Opt. Soc. Am. A 8,452 (1991)] violates this assumption, I show that a full-rank triple-correlation matrix exists. Recent important results that establish a unique reconstruction of two-sided polezero signals and their orders are also presented.
|Original language||English (US)|
|Number of pages||2|
|Journal||Journal of the Optical Society of America A: Optics and Image Science, and Vision|
|State||Published - Feb 1991|