Efficient Frequency Estimation and Time-Frequency Representations
Brian C. Lovell, Peter J. Kootsookos, Robert C. Williamson · 1990
A computationally efficient estimator of the frequency of a single complex sinusoind in complex white Gaussian noise was recently proposed by Kay. Combining Kay's analysis with our own knowledge, we now introduce the parabolic SCFD (PSCFD) IF estimator which is unbiased, optimal and has a frequency-independent threshold of 8dB.