| 摘要 |
The present invention discloses a method of improved impairment covariance matrix estimation for a received signal in a Generalized Rake receiver arrangement, providing SIO a plurality N of despread pilot symbols representative of the signal, determining S20 an estimate of an impairment covariance matrix R for the received signal. Subsequently, providing S30 an estimate of scaling parameters a, &bgr; for the estimate R by means of a weighted least squares estimate based on the color of a residual noise vector for the impairment covariance matrix estimate R, and forming S40 an improved estimate of the impairment covariance matrix based on the weighted least squares estimate.
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