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英语翻译数字滤波器在数字信号处理中起着非常重要的作用,用于信号的过滤、检测与参数的估计等方面,是使用最为广泛的一种线性系

来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/11/07 16:41:41
英语翻译
数字滤波器在数字信号处理中起着非常重要的作用,用于信号的过滤、检测与参数的估计等方面,是使用最为广泛的一种线性系统.实现数字滤波器的方法有两种,一是采用计算机软件进行,就是把所要完成的工作通过程序让计算机来实现;二是设计专用的数字处理硬件.这里我们用到的是第一种方法即是用MATLAB提供的信号处理工具箱来实现数字滤波器.本文首先介绍IIR数字滤波器及其传递函数,然后介绍了MATLAB的相关知识并阐述了基于MATLAB的三种实现手段:基于模拟原型的设计、直接设计法、通用Butterworth设计方法.文中着重介绍了模拟原型各步骤:模拟滤波器设计、频带变换、离散化处理.这些设计方法为数字滤波器设计带来全新的实现手段,设计快捷方便,仿真波形直观.
Digital filter in digital signal processing plays a very important role, used for signal filtration, detection and parameter estimation etc., is the most widely used a linear system. Realizing digital filter, there are two ways, one is to adopt the computer software, is to finish the work by the program to make the computer to realize; 2 it is design the special-purpose digital processing hardware. Here we use is the first method is that the MATLAB provide signal processing toolbox to realize digital filter. This paper first introduces IIR digital filter and its transfer function, and then introduced the MATLAB related knowledge and expounded based on the MATLAB three means of realization: based on simulated prototype design, direct design method, the general Butterworth design method. This paper mainly introduces various steps: analog simulation prototype filter design, frequency conversion, discretization of. These design method for digital filters designed to bring new means of realization, the design is very fast and convenient, simulation waveform intuitive.