Prefiltered blind equalization: how to fully benefit from spatio-temporal diversity?
Alexandre de Baynast, Inbar Fijalkow · 2002
We propose a new structure for blind equalization with spatiotemporal diversity at the receiver (SIMO system). This structure is derived from the Wiener filter. It is composed of a prefilter deduced from the data spectral density (no blind criterion is needed) and a FIR filter, independent of the noise level, to be obtained blindly. The new prefilter is robust to a total lack of effective diversity and benefits from any available diversity. Simulations show that this new blind equalizer performs similarly to the Wiener filter even with a very small amount of data.