Abstract
This paper considers the problem of blind adaptive equalization of infinite impulse response (IIR) channels without requiring the channel diversity condition. That is, the subchannels in the fractionally sampled model can have common factors. We analyze the case of two parallel channels, and develop an equalizer based on IIR prediction of the received signal. The predictor parameters are estimated by using the recursive extended least squares (RELS) algorithm. It is proved that with probability one the adaptive equalizer is globally stable, the parameter estimates are consistent, and the prediction error converges toward a scalar multiple of the input symbol sequence.
Original language | English (US) |
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Pages (from-to) | 467-486 |
Number of pages | 20 |
Journal | Circuits, Systems, and Signal Processing |
Volume | 28 |
Issue number | 3 |
DOIs | |
State | Published - Jun 2009 |
Keywords
- Blind equalization
- Fractional sampling
- IIRpredictor
- RELS
ASJC Scopus subject areas
- Signal Processing
- Applied Mathematics