Title :
On direct blind equalization of SIMO IIR channels with common zeros using second-order statistics
Author :
Tugnait, Jitendra K. ; Huang, Bin
Author_Institution :
Dept. of Electr. Eng., Auburn Univ., AL, USA
Abstract :
The problem of blind equalization of SIMO (single-input multiple-output) communications channels is considered using only the second-order statistics of the data. Such models arise when a single receiver data is fractionally sampled (assuming that there is excess bandwidth), or when an antenna array is used with or without fractional sampling. We focus on direct design of finite-length MMSE (minimum mean-square error) blind equalizers. Unlike the past work on this problem, we allow infinite impulse response (IIR) channels. Our approaches also work when the "subchannel" transfer functions have common zeros so long as the common zeros are minimum-phase zeros. Illustrative simulation examples are provided.
Keywords :
array signal processing; direction-of-arrival estimation; equalisers; least mean squares methods; poles and zeros; signal sampling; statistical analysis; telecommunication channels; transient response; 4QAM; IIR channels; SIMO IIR channels; antenna array; common zeros; communications channels; direct blind equalization; direct design; excess bandwidth; finite-length MMSE blind equalizers; fractional sampling; infinite impulse response; minimum mean-square error; minimum-phase zeros; receiver data; second-order statistics; single-input multiple-output; subchannel transfer functions; Additive noise; Antenna arrays; Bandwidth; Blind equalizers; Communication channels; Finite impulse response filter; Receiving antennas; Sampling methods; Statistics; Transfer functions;
Conference_Titel :
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-8316-3
DOI :
10.1109/ACSSC.1997.679175
