Timeline for Can I run a GA to optimize wavelet transform?
Current License: CC BY-SA 3.0
15 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 5, 2013 at 15:16 | history | tweeted | twitter.com/#!/StackSignals/status/375638563398094849 | ||
| Sep 2, 2013 at 22:14 | comment | added | SAH | @MahdiKhosravi Hi. it seems matlab doesn't support complex morlet to reconstruct the signal. do you know how can I reconstruct it with coefficients? mathworks.com/help/wavelet/ref/icwtlin.html | |
| Sep 2, 2013 at 20:27 | comment | added | SAH | @MahdiKhosravi Look at my edit on the question please. | |
| Sep 2, 2013 at 20:26 | history | edited | SAH | CC BY-SA 3.0 | added 381 characters in body |
| Sep 2, 2013 at 14:39 | answer | added | Hasan | timeline score: 1 | |
| Sep 2, 2013 at 13:08 | comment | added | Mahdi Khosravi | $e(t) = |x(t) - \hat x(t)|$. I don't have any better idea. | |
| Sep 2, 2013 at 10:03 | comment | added | SAH | @MahdiKhosravi , If original signal is x(t) and reconstruct signal is Xn(t) then I must minimize the error=x(t)-Xn(t) by changing Fb,Fc? also the error function is error=x(t)-Xn(t) or do you have a better idea | |
| Sep 2, 2013 at 9:07 | comment | added | Mahdi Khosravi | You can reconstruct signal from the estimated parameters then subtract it from the original to see how they are difference | |
| Sep 2, 2013 at 8:53 | comment | added | SAH | @MahdiKhosravi I am estimating the damping and freqs in a 1-D signal. so what is my error function? what is the function for finding the error between reconstructed signal and the original signal. | |
| Sep 2, 2013 at 8:43 | comment | added | Mahdi Khosravi | You can reconstruct signal from fc and fb and minimize the error between reconstructed signal and the original signal. | |
| Sep 2, 2013 at 7:28 | comment | added | SAH | @MahdiKhosravi I've done that already and the estimated parameters are accurate enough.But in this post I wanted to ask how can I optimize fc and fb(resolution) with another algorithm. | |
| Sep 1, 2013 at 20:35 | comment | added | Mahdi Khosravi | I mean use Wavelets with higher resolution to get results with more accuracy. | |
| Sep 1, 2013 at 19:55 | comment | added | SAH | @MahdiKhosravi hi, thanks for your answer. what is " Wavelets with high accuracy"? a new wavelet type or what? | |
| Sep 1, 2013 at 19:18 | comment | added | Mahdi Khosravi | I think GA is not a suitable optimization algorithm for this problem. GA is mostly used when parameters to be optimized are a lot and when the objective function varies in a way which is not able to be tracked. I suggest you to use Wavelets with high accuracy. | |
| Sep 1, 2013 at 14:11 | history | asked | SAH | CC BY-SA 3.0 |