Down-sampling with interp1
조회 수: 21 (최근 30일)
이전 댓글 표시
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
댓글 수: 0
채택된 답변
Walter Roberson
2016년 1월 8일
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.
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Multirate Signal Processing에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!