Equipment and adaptation estimation tracking method of DOA

摘要

In uncorrelated white noise environment, while shifting one element at a time moment correlation number of signals (= p pieces) than moment correlation except for the diagonal elements than the column or a given row of the array covariance matrix (M-1) number of to create a correlation matrix moment by arranging the matrix is ​​removed. Then vertically separated correlation matrix of two the instantaneous correlation matrix, calculating a linear operator at time n by the NLMS adaptive algorithm or the LMS adaptive algorithm using the step size parameter of the time-varying or fixed upper and lower correlation matrix of two , estimates the noise subspace using said linear operator, and estimates the arrival direction tracking of the signal at time n by an approximate Newton method using the noise subspace.