Under the condition that the step size is less than one, a statistical tracking behavior analysis for the affine projection algorithm based on direction error is discussed. When the unknown true weight vector is modeled by the stochastic walk model, the mean weight error is derived under the four assumptions based on the deterministic recursive equation. Furthermore, the statistical tracking behavior of the steady state is analyzed for the affine projection algorithm based on direction error. Simulation analysis is shown to suppniort the mathematical results.

中文翻译：

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基于方向误差的仿射投影算法的统计跟踪行为分析

在步长小于1的情况下，讨论了基于方向误差的仿射投影算法的统计跟踪行为分析。当未知的真实权重向量通过随机游走模型建模时，平均权重误差是在基于确定性递归方程的四个假设下得出的。进一步分析了基于方向误差的仿射投影算法稳态的统计跟踪行为。仿真分析显示支持数学结果。