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SOS-based Blind Equalization Algorithm of FIR MIMO System in Frequency Domain

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4 Author(s)
Xizhong Shen ; Nat. Key Lab. for Vibration, Shock & Noise, Shanghai Jiao Tong Univ. ; Dachao Hu ; Guang Meng ; Tao Wang

Blind equalization of finite impulse response multi-input multi-output system is an important task for numerous applications such as speech separation, dereverberation, communication, signal processing and control, etc. A cost function is constructed based on second order statistics of equalizer output, and a new algorithm is derived with natural gradient. The algorithm is adapted to non-stationary signals, and the learning rate is multiplied by a constraint factor, which is adjusted adaptively. Simulations indicate the ability of the algorithm to perform blind equalization under the weaker condition (the system is equalizable)

Published in:

Sensor Array and Multichannel Processing, 2006. Fourth IEEE Workshop on

Date of Conference:

12-14 July 2006