使用 sinc 函数对数据集进行插值 - MATLAB

发布于 2025-01-12 08:42:46 字数 443 浏览 1 评论 0原文

我想使用 sinc 函数对我已经采样的一些数据进行插值。我对 Matlab 不太熟悉，但我发现了以下脚本：

rng default

t = 1:10;
x = randn(size(t))';
ts = linspace(-5,15,600);
[Ts,T] = ndgrid(ts,t);
y = sinc(Ts - T)*x;

plot(t,x,'o',ts,y)
xlabel Time, ylabel Signal
legend('Sampled','Interpolated','Location','SouthWest')
legend boxoff

我了解如何更改格式。我的问题是，我该如何对自己的采样数据执行此操作？任何帮助将不胜感激。非常感谢！

编辑：我多次尝试用自己的 x 值替换 x 值，但每次运行代码时它都会恢复为原始值。我不知道为什么会发生这种情况......

原文

I want to use the sinc function to interpolate some data I already have sampled. I am not very familiar with Matlab, but I found the following script:

rng default

t = 1:10;
x = randn(size(t))';
ts = linspace(-5,15,600);
[Ts,T] = ndgrid(ts,t);
y = sinc(Ts - T)*x;

plot(t,x,'o',ts,y)
xlabel Time, ylabel Signal
legend('Sampled','Interpolated','Location','SouthWest')
legend boxoff

I understand how to change the formatting.
My question is, how can I do this for my own sampled data?
Any help would be greatly appreciated. Thank you very much!

Edit: I tried replacing the x-values with my own multiple times, but each time it reverts to the original when I run the code. I'm not sure why this happens...

分享到QQ

分享到微博