Title :
Maximum likelihood method for blind identification of multiple autoregressive channels
Author :
Fang, Zheng ; Hua, Yingbo
Author_Institution :
Dept. of Electr. Eng., California Univ., Riverside, CA, USA
Abstract :
We present a two-step maximum likelihood (TSML) algorithm for blind identification of single-input-multiple-output (SIMO) channels modeled as autoregressive (AR) system. The AR-TSML algorithm provides a new and useful alternative to a previously developed TSML algorithm for moving-average (MA) system. The AR-TSML algorithm is shown to be more robust than the MA-TSML algorithm if the channel impulse responses have long tails.
Keywords :
autoregressive processes; channel estimation; maximum likelihood estimation; moving average processes; transient response; autoregressive system; blind identification; channel impulse responses; maximum likelihood method; moving-average system; multiple autoregressive channels; single-input-multiple-output channels; Channel capacity; Microphone arrays; Noise cancellation; Oral communication; Probability distribution; Robustness; Sensor arrays; Sensor systems; Signal processing algorithms; Wireless communication;
Conference_Titel :
Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
Print_ISBN :
0-7803-7965-9
DOI :
10.1109/ICME.2003.1221685
