Title :
Application of Maximum Likelihood Estimation of Persymmetric Covariance Matrices to Adaptive Processing
Author_Institution :
General Electric Company, Syracuse, NY 13221
Abstract :
The optimum weights for an adaptive processor are determined by solving a particular matrix equation. When, as is usually true in practice, the covariance matrix is unknown, a matrix estimator is required. Estimating the matrix can be computationally burden some. Methods of decreasing the computational burden by exploiting persymmetric symmetries are discussed. It is shown that the number of independent vector measurements required for the estimator can be decreased by up to a factor of two.
Keywords :
Covariance matrix; Delay effects; Equations; Frequency domain analysis; Frequency estimation; Interference; Maximum likelihood estimation; Phased arrays; Symmetric matrices; Voltage;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.1980.308887