TY - GEN
T1 - On the parameter estimation of the harmonic, evanescent and purely indeterministic components of homogeneous random fields
AU - Francos, Joseph M.
AU - De Garrido, Diego P.
AU - Woods, John W.
N1 - Publisher Copyright:
© 1992 IEEE.
PY - 1992/1/1
Y1 - 1992/1/1
N2 - The paper presents a maximum-likelihood estimation procedure for the parameters of homogeneous random fields. On the basis of a 2-D Wold-like decomposition, the random field is decomposed into a sum of mutually orthogonal components of three types: purely indeterministic, harmonic, and generalized-evanescent. Since in general, a homogeneous random field is characterized by a mixed spectral distribution, parameter estimation techniques which are solely based on spectral density estimators are not adequate. We present here an algorithm which results in a complete parameter estimation for the purely indeterministic and harmonic components of the homogeneous random field and in estimates for the evanescent component frequencies. The new ML method produces highly accurate estimates of these parameters.
AB - The paper presents a maximum-likelihood estimation procedure for the parameters of homogeneous random fields. On the basis of a 2-D Wold-like decomposition, the random field is decomposed into a sum of mutually orthogonal components of three types: purely indeterministic, harmonic, and generalized-evanescent. Since in general, a homogeneous random field is characterized by a mixed spectral distribution, parameter estimation techniques which are solely based on spectral density estimators are not adequate. We present here an algorithm which results in a complete parameter estimation for the purely indeterministic and harmonic components of the homogeneous random field and in estimates for the evanescent component frequencies. The new ML method produces highly accurate estimates of these parameters.
UR - http://www.scopus.com/inward/record.url?scp=84941445857&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.1992.226281
DO - 10.1109/ICASSP.1992.226281
M3 - Conference contribution
AN - SCOPUS:84941445857
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 41
EP - 44
BT - ICASSP 1992 - 1992 International Conference on Acoustics, Speech, and Signal Processing
PB - Institute of Electrical and Electronics Engineers
T2 - 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1992
Y2 - 23 March 1992 through 26 March 1992
ER -