清空筛选条件
清空筛选条件

Down-sampling with interp1

45 次查看（过去 30 天）
PPM
PPM 2016-1-8
评论： PPM 2016-1-8
Hi,
I have a vector with 1500 rows, and I am trying to down-sample this using interp1 like this:
downsampled = interp1([1:length(original)],original,1:1:100);
However, it looks like the output "downsampled' is just a copy of the first 100 rows of original. Any hints on this?
Cheers

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2016-1-8
oL = length(original);
downsampled = interp1(1:oL, original, linspace(1,oL,100));
However please think about whether you want 100 points output or 101 points output. If you want to divide into 100 segments of equal length then you want 101 points output.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Multirate Signal Processing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by