中文说明：应用背景一般输入信号x（t）通过一个线性时不变系统称为不失真的如果它的形状是相同的输入信号x（t）。在数学上，输出（吨）有以下的形式：Y（t）= x（t−TD），（1）其中K是增益和TD是时间延迟。在频域中可以很容易地得到失真的条件下的传输。为了获得这些条件，我们采取傅立叶变换（英尺）的（1）在（吨）：Y（F）= KX（F）E−J2 FTD，（2）（女）和×（英）指的是（吨）和×（吨）。记得一个LTI系统的频域输出可以写为（女）=（女）（女），（3）其中H（f）表示的脉冲响应h（t）的FT的LTI系统。关键技术增加幅度失真和相位失真。这是通过使用MATLAB。通信系统实验室。
English Description：
Application background the input signal x (T) passing through a linear time invariant system is called undistorted if its shape is the same as the input signal x (T). Mathematically, the output (ton) has the following form: Y (T) = x (t − TD), (1) where k is the gain and TD is the time delay. In the frequency domain, it is easy to get the transmission under the condition of distortion. In order to obtain these conditions, we take Fourier transform (FT) of (1) in (T): Y (f) = KX (f) e − J2 FTD, (2) (f) and × (UK) refer to (T) and × (T). Remember that the frequency domain output of an LTI system can be written as (female) = (female) (female), (3) where H (f) denotes the impulse response H (T) of the FT of the LTI system. The key technology is to increase amplitude distortion and phase distortion. This is done by using MATLAB. Communication system laboratory.