Timeline for How to find correlation between two signals regarding peaks?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 22, 2020 at 14:03 | vote | accept | Khan | ||
| Mar 22, 2020 at 13:45 | answer | added | Dan Boschen | timeline score: 1 | |
| Mar 22, 2020 at 13:20 | comment | added | Khan | In my case its machine vibration and iam trying to find a relationship between lr /hr. The lr is a sensor with restricted resolution. And an example usecase would be: is it possible to predict hr frequency with a lr sensor to maybe detect faults with frequencies in hr space. | |
| Mar 22, 2020 at 13:15 | comment | added | Dan Boschen | Why would any of the low frequencies be correlated to the high frequencies other than integer harmonics? Normally they would be uncorrelated unless there is some relationship in place. What is it about your case imposing this relationship and what would that be exactly (mathematically)? | |
| Mar 22, 2020 at 13:13 | history | edited | Khan | CC BY-SA 4.0 |
added a plot
|
| Mar 22, 2020 at 13:03 | comment | added | Khan | ehmm i mean X and Y are actually both the same, the difference is, X is a low-pass-filtered version of Y. Now i want to check which frequency in the low-resolution space has a correlation with frequency in the high-resolution space so i can learn a pattern from low resolution to high resolution | |
| Mar 22, 2020 at 12:44 | comment | added | Dan Boschen | Can you clarify further what you mean by "occur always together". Do you mean to say that the 1 KHz peak would appear in both and then there would be a peak at 3 KHz, or do you mean if there is only a 1 KHz peak in X there would only be a 3 KHz peak in Y? That said can you write out the formula for the relationship of these frequency locations between X and Y? | |
| Mar 22, 2020 at 10:51 | history | asked | Khan | CC BY-SA 4.0 |