Affine Projection Algorithms with Variable Regularization

نویسندگان

  • Young-Seok Choi
  • Hyun-Chool Shin
  • Woo-Jin Song
چکیده

We propose two new affine projection algorithms (APA) with variable regularization parameter. The proposed algorithms dynamically update the regularization parameter that is fixed in the conventional regularized APA (R-APA) using a gradient descent based approach. By introducing the normalized gradient, the proposed algorithms give birth to an efficient and a robust update scheme for the regularization parameter. Through experiments we demonstrate that the proposed algorithms outperform conventional R-APA in terms of the convergence rate and the misadjustment error.

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تاریخ انتشار 2005