论文信息 - Tracking capabilities of the LMS adaptive filter in the presence of gain variations

Tracking capabilities of the LMS adaptive filter in the presence of gain variations

The tracking capabilities of the least mean square (LMS) adaptive filter when it is used to identify a nonstationary channel suffering from gain variations are studied. An analytical solution for the steady-state lag error is obtained, and its validity is verified by means of simulations. Depending on the magnitude and bandwidth of the variations, the total steady-state error is found either to increase monotically as a function of the adaptation parameter mu or to exhibit a global minimum for a finite, nonzero value of mu . >

Jan W. M. Bergmans

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