Adaptive multichannel blind identification using manifold optimization

作者：Xia, Wei^*; He, Zishu; Liu, Benyong; Niu, Cuizhu

来源：Signal Processing, 2008, 88(6): 1595-1605.

DOI：10.1016/j.sigpro.2007.12.013

• adaptive filtering
• blind channel identification
• single-input multiple-output system
• stiefel manifold

The multichannel blind identification problem can be formulated as minimizing a cost function based on the cross-relations among different sub-channels, subject to a unit-norm constraint. In this correspondence, this constraint optimization problem is reformulated as an unconstrained one on the Stiefel manifold. Some previously proposed algorithms are also shown to be special cases of this algorithm framework. The convergence and low steady-state misalignment of the proposed algorithms are verified by illustrative computer simulations.

• 出版日期2008-6
• 单位电子科技大学