Computing a local smoothed numerical integration of a data set

Hello,
I have a data set (pitch rate q_a) shown in blue. Using a standard SIDPAC code, I computed a local smoothed numerical time derivative (q_deriv in red). What command/code can help me recover the original data set q from q_deriv?

 采纳的回答

Jan
Jan 2014-3-10
编辑:Jan 2014-3-10
You cannot obtain the original signal from the smoothed one. The smoothing destroys the noise information.

更多回答(1 个)

Hello Jan,
Say I calculate the numerical derivative without smoothing. Is there any method in that case?

1 个评论

Looks a a small example:
x = [9, 10]
Now calculate the derivative:
d = 1;
Finally a recontruction of the original signal is not possible, obviously.
But if you store the first value in addition, the reconstruction works again.

请先登录,再进行评论。

类别

帮助中心File Exchange 中查找有关 Smoothing 的更多信息

Community Treasure Hunt

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

Start Hunting!

Translated by