对于一阶系统辨识，分别采用LMS、RLS、仿射投影算法来估计参数-For a first-order system identification, respectively, using LMS, RLS, affine projection algorithm to estimate the parameters

仿射投影符号算法是仿射投影算法和符号算法的组合算法，具有良好的抗冲击噪声的能力。-Affine projection algorithm is a combination algorithm symbol affine projection algorithms and symbolic algorithms, have good impact noise capabilities.

在有色输入下，仿射投影算法(APA)由于具有比最小均方(LMS)算法更快的收敛速度和比递归最小二乘(RLS)算法更低的复杂度而受到青睐。-The APA better improves the convergence rate compared with the LMS-type filters, especially in the case of coloured input signals.