中文说明:在此示例中,我们有一个典型的系统识别场景。我们想要 %%来估计未知的系统,给出了由窝的滤波器系数。在 %% 的订单,完成这项任务,我们使用自适应滤波与同一 %%n 作为未知系统的系数,数。该过程是: %%1) 激发这两个过滤器 (未知和自适应) 与信号 %% x.在这种情况下,x 是选择 4-QAM 星座。 %X 的方差标准化为 1%。 %%2) 生成所需的信号,d = Wo' x + n,是输出的 %%考虑一些扰动 (噪声) 模型中的未知的系统。%%噪声功率,给出 sigma_n2。 %3%) 选择一种自适应的滤波算法来约束系数 %的规则%更新。
English Description:
In this example we have a typical system identification scenario. We want %% to estimate the filter coefficients of an unknown system given by Wo. In %% order to accomplish this task we use an adaptive filter with the same %% number of coefficients, N, as the unkown system. The procedure is: %% 1) Excitate both filters (the unknown and the adaptive) with the signal %% x. In this case, x is chosen according to the 4-QAM constellation. %% The variance of x is normalized to 1.