利用线性神经网络对某一正弦信号进行线性预测。利用函数newlind设计线性神经网络， 在已知正弦信号过去5个值得情况下，预测其将来值。 定义需要的信号，共持续5s，采样频率40Hz-Using linear neural network to a sinusoidal signal for linear prediction. Newlind design using a linear function of neural networks, known sinusoidal

采样正弦信号的振幅、频率、相位和均值，应用Z变换。-Amplitude, frequency, phase and mean value of sampled sine wave，take the application of Z-transform.