Ce. Davila, A SUBSPACE APPROACH TO ESTIMATION OF AUTOREGRESSIVE PARAMETERS FROM NOISY MEASUREMENTS, IEEE transactions on signal processing, 46(2), 1998, pp. 531-534
This correspondence describes a method for estimating the parameters o
f an autoregressive (AR) process from a finite number of noisy measure
ments, The method uses a modified set of Yule-Walker (YW) equations th
at lead to a quadratic eigenvalue problem that, when solved, gives est
imates of the AR parameters and the measurement noise variance.