MATLAB下的数字信号处理实现示例,包括信号、系统和系统响应的MATLAB函数以及用FFT进行信号的频谱分析的函数及其实现-MATLAB under the digital signal processing to achieve sample, including the signal system and the system response function as well as the MATLAB signal FFT spectrum analysis function and

The main procedure of the experiment was to sample a signal with different sampling frequencies and observe the differences between them. This experiment is important for us because it aims to teach how to use matlab commands to reconstruct a sampled

滤波器，顾名思义，是对波进行过滤的器件。“波”是一个非常广泛的物理概念，在电子技术领域，“波”被狭义地局限于特指描述各种物理量的取值随时间起伏变化的过程。该过程通过各类传感器的作用，被转换为电压或电流的时间函数，称之为各种物理量的时间波形，或者称之为信号。因为自变量时间‘是连续取值的，所以称之为连续时间信号，又习惯地称之为模拟信号(Analog Signal)。随着数字式电子计算机(一般简称计算机)技术的产生和飞速发展，为了便于计算机对信号进行处理，产生了在抽样定理指导下将连续时间信号变换成离散

多速率数字信号处理，它的时域和频域特性，级联等效，用MATLAB实现采样率转换器-Multirate digital signal processing, its time domain and frequency domain characteristics, cascade equivalent, using MATLAB to realize the sample rate converter