Wavelet Transform in time second
显示 更早的评论
Hi, how to convert the data in array to time second after decompose 1-D in wavelet transform? Really need your help.
回答（1 个）
Wayne King
2016-10-14
1 个投票
Hi Farah, there are multiple varieties of 1-D wavelet transform. There is the redundant variety like MODWT where there are as many coefficients as the original data at each level. In this case the time stamp of the coefficients are the same as the data.
In the critically sampled DWT (wavedec), the coefficients are spaced in time proportional to the level.
Can you give a concrete example of which wavelet transform you are trying to use? It would be helpful to give us a sample signal and the sampling rate of the original signal.
4 个评论
farah
2016-10-14
<<
>> Hi Wayne, I use wavelet toolbox to decompose signal which use time series. In wavelet toolbox I cannot import data from workspace in time series except in array which I need the answer in time seconds not in array data. So how can I solve this problem? I want to detect the maximum point of impulse signal as in image in time second no in sample data array.
Wayne King
2016-10-14
Thanks Farah, this is helpful. Do you mind attaching this time series? That would help a lot, thanks
farah
2016-10-15
类别
在 帮助中心 和 File Exchange 中查找有关 Signal Analysis 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 
