How to determine the distance of gaussian filter?

2 次查看（过去 30 天）

hanif hamden 2020-11-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/643370-how-to-determine-the-distance-of-gaussian-filter

Hi everyone, I was confuse on how to determine the distance of gaussian filter. there are some article mentioned that the data filtered with ~20km gaussian filter. I wonder how they determine the distance of filter? Can anyone explain in more details.

This is just my example code and attach files.

clc; clear all; close all;
A = load('Example.txt');
x = A(:,2);
y = A(:,6);
Filty1 = imgaussian(y,3);
Filty2 = imgaussian(y,6);
plot(x,y,'.-b'); hold on;
plot(x,Filty1,'.-r'); hold on;
plot(x,Filty2,'.-g'); hold on;