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- Christopher J. Zarowski, Xiaoyan Ma, Frederick W. Fairman
- IEEE Trans. Signal Processing
- 2000

This paper presents a novel means of computing the greatest common divisor (GCD) of two polynomials with real-valued coefficients that have been perturbed by noise. The method involves the QR-factorization of a near-to-Toeplitz matrix derived from the Sylvester matrix of the two polynomials. It turns out that the GCD to within a constant factor is contained… (More)

- Mingyu Liu, Christopher J. Zarowski, Frederick W. Fairman
- IEEE Trans. Signal Processing
- 2000

- E. M. Ma, Christopher J. Zarowski
- IEEE Trans. Information Theory
- 1995

This correspondence presents an improvement to Demho's lower bound on the smallest eigenvalue of a Hermitian positive-definite matrix. Unlike Dembo's bound the improved hound is always positive.

- Christopher J. Zarowski
- IEEE Trans. Signal Processing
- 2002

We consider the samples of a pure tone in additive white Gaussian noise (AWGN) for which we wish to determine the signal-to-noise ratio (SNR) defined here to be = ( 2 ), where is the tone amplitude, and is the noise variance. and are assumed to be deterministic but unknown a priori. If the variance of an unbiased estimator of is , we show that at high SNR,… (More)

- Christopher J. Zarowski
- IEEE Trans. Signal Processing
- 1998

- Christopher J. Zarowski
- IEEE Trans. Signal Processing
- 1991

- Christopher J. Zarowski
- IEEE Trans. Computers
- 1995

- Christopher J. Zarowski, Howard C. Card
- IEEE Trans. Computers
- 1990

- Christopher J. Zarowski
- IEEE Trans. Signal Processing
- 1992

- Fenglei Liu, Christopher J. Zarowski
- IEEE Trans. Instrumentation and Measurement
- 2004