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On an approximate subspace method for eigenfilter computation

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2 Author(s)
Fuhrmann, D. ; Washington University, St. Louis, MO, USA ; Fuhrmann, D.R.

A method has been proposed for estimating the frequencies of sinusoids in additive white Gaussian noise. The method is an approximation to Kumaresan's "improved Pisarenko" method, which can be thought of as the computation of an FIR notch filter with zeros at the signal frequencies. The new algorithm consists of subtracting a small ε from the

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Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:34 ,  Issue: 1 )