MATLAB:将一个低通或高通滤波器应用于一个数组 [英] MATLAB: Apply a low-pass or high-pass filter to an array
问题描述
有没有一种简单的方法在MATLAB中对数组应用低通或高通滤波器?我对MATLAB的能力(或数学的复杂性)感到有点不知所措,需要一个简单的功能或一些指导,因为我无法从文档或搜索网络中找到它。
当然,请看 b 如果你只需要一个1极点低通滤波器,它是 这里是相应的高通滤波器: is there an easy way to apply a low-pass or high-pass filter to an array in MATLAB? I'm a bit overwhelmed by MATLABs power (or the complexity of mathematics?) and need an easy function or some guidance as I couldn't figure it out from the documentation or searching the web. sure, look at the filter function. If you just need a 1-pole low-pass filter, it's where a = T/τ, T = the time between samples, and τ (tau) is the filter time constant. Here's the corresponding high-pass filter: If you need to design a filter, and have a license for the Signal Processing Toolbox, there's a bunch of functions, look at fvtool and fdatool. 这篇关于MATLAB:将一个低通或高通滤波器应用于一个数组的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
xfilt = filter(a,[1 a-1],x);
其中a = T / T,T =样本之间的时间, (tau)是滤波时间常数。
$ $ $ $ $ xfilt = filter([1-a a-1],[1 a-1],x);如果你需要设计一个滤波器,并有信号处理工具箱的许可证,那么一堆函数,看看 fvtool 和 fdatool 。
xfilt = filter(a, [1 a-1], x);
xfilt = filter([1-a a-1],[1 a-1], x);