Jan Ali
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What is the unit for instantaneous energy on the color bar in the Hilbert spectrum
When applying hht(imf,fs) we get Hilbert spectrum showing a colorbar on the right for the instantaneous energy. I am wonderin to...
circa 3 anni fa | 1 risposta | 1
1
rispostaDomanda
How to find the time of the max peak in a signal?
I have a signal data (x) which is 2s long. There is a peack on the signal that I can find with the findpeaks(x) function. I a...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to get residual and other info in eemd?
Hello everyone! I am using the IMF = eemd(y,aim,NR,Nstd) function. I get only IMF info, but when I want to put more out put arg...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to find a value at a certain point/time slot?
Hello everyone! Can anyone help me with finding the value at a specific point/time? For exp. I have a signal to be analyzed, b...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to find max value of a vector in a certain time interval?
I want to find a max value in a spesific time span. For exp. I have a segment of a signal from 26 to 28 s. Does any one know h...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
What is the unit for measures on the colorbar in Hilbert spectrum?
When applying hht(imf,fs) we get Hilbert spectrum showing a colorbar on the right. I am wonderin to know what the unit for those...
oltre 3 anni fa | 0 risposte | 0
0
risposteDomanda
What are the measures/scales on the colorbar in Hilbert spectrum?
When applying hht(imf,fs) we get Hilbert spectrum showing a colorbar on the right. What are those values/measures on the color b...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to assign time on x-axis in emd?
I am using the built in function emd(x), but I can't get the time periode I used for the signal, instead there are samples on t...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to plot actual amplitude on the colorbar using STFT (spectrogram)
I am using built in spectrogram function and it automatically plots the power/frequency (dB/Hz) values on the colorbar on the ri...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to plot actual time on x-axis in emd
I am using the built in function for EMD, but I can't get the time periode I used for the signal. Can anyone help me with assig...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
What is the reference magnitude/amplitude for calculating dB in the power colorbar using STFT?
When plotting a STFT of a signal, the colorbar on the right shows power density in dB. What is the reference magnitude/amplitude...
oltre 3 anni fa | 2 risposte | 0
2
risposteDomanda
What is the reference for the power/frequency scale bar on the right in Spectrogram?
Dear experts, Can anyone help me how to get the power/frequency scale in Spectrogram using STFT? What is the reference for the...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to plot spectrogram in actual time period?
Does anyone know how to plot actual time interval in Spectrogram using STFT? I want to analyze an event in a signal in a certai...
oltre 3 anni fa | 0 risposte | 0
0
risposteDomanda
How to plot scalogram in time period?
Hi eveyone! I want to analyze an event in a signal in a certain time span, but using the cwt(x, fs) built in function plots in ...
oltre 3 anni fa | 3 risposte | 0
3
risposteDomanda
How analyze PMU data in the form of sinusoidal waveform?
Dear experts. I need your help with PMU dataset analysis. I am wondering how to plot sinusoidal waveform if we have PMU data t...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
power grid 3 phase 230 V dataset analysis
Dear experts, Can anyone help me with analysis of dataset for 3 phase power system with 230 v? How can I apply the Fourier Tran...
oltre 3 anni fa | 0 risposte | 0
0
risposteDomanda
electric power 3 phase 230 V dataset analysis
Dear members, Can anyone help me with analysis of dataset for 3 phase power system with 230 v within 5 minutes ? The dataset c...
oltre 3 anni fa | 0 risposte | 0
0
risposteDomanda
Problem with running eemd function
Dear experts, I face issue when implementing the eemd function on a power quality signal (y). It is a bit hard to me to realize...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
eemd Matlab code for power quality signal analysis
Any one who could share eemd code for PQ signal analysis? Thanks in advance,
oltre 3 anni fa | 0 risposte | 0
0
risposteDomanda
local domain and global domain
Hi there, Could anyone kindly explain what the "local domain and global domain" is in signal analysis? Aditionally, what does...
oltre 3 anni fa | 1 risposta | 0
1
rispostaDomanda
How to write code for a composite signal with instantaneous frequency
Anyone can help me with writing code for this function?
quasi 4 anni fa | 1 risposta | 0
1
rispostaDomanda
How to apply Hilbert Huang transfer method on the signal Sc(t):
How to run Hilbert spectrum of the following function(signal):
quasi 4 anni fa | 1 risposta | 0
1
rispostaDomanda
How to write code for a function x(t), consist of two sine wave with instantaneous frequencies at different time spot as seen in figure below:
Could any one help me how to write the Matlab code for this function in order to plot the Hilbert spectrum?
quasi 4 anni fa | 1 risposta | 0
1
rispostaDomanda
(emd) How to get script/code from a figure/plot ?
To plot emd for a function (x), I just write a synthetic signal and when I run emd(x), the signal components (imfs) will be sho...
quasi 4 anni fa | 1 risposta | 0