基于投影算法的二维自适应滤波器

Two-Dimensional Adaptive Filter Based on Projection Algorithm

提出了一个可以使滤波器的系数同时在水平和垂直方向上更新的二维投影算法,推导了该算法的一些基本性质.为与其他二维自适应算法比较,将该算法应用到二维系统辨识中.仿真结果表明,提出的二维投影算法(MPA)具有好的效果.

This paper proposes a two-dimensional （2-D） projection algorithm by which filter coefficients can be updated both along the horizontal and the vertical directions on a 2-D plane. Some basic properties of the algorithm are derived. In order to compare with other 2-D adaptive algorithms, it is applied to the identification of 2-D systems with stationary or non-stationary characteristics. Simulation results show that the proposed 2-D Modified Projection Algorithm （MPA） achieves good performance.