Help with Fourier - page 18

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trol222:
This cannot be considered in the context of a single harmonic only all at once more accurately their continuation in the future with a known character of attenuation
:-)) There is no need to continue them into the future. Their future equals their past.
 
Zhunko:
:-)) There is no need to continue into their future. Their future equals their past.
continue not their but their fading tails and continue to work with them. it is clear that the future will equal the past and that the spectrum will float but in character where it will float and how fast.
 
Zhunko:

Oddly enough, the degree of importance of each harmonic is the same. Try to reconstruct the original series without harmonics smaller than 4 bars. I.e. these are harmonics which do not make physical sense in the market. They cannot be reproduced. The original series will be very different from the assembled one.

Moreover, these harmonics are less than one percent of the first harmonic in amplitude. That's how much influence there is.

When I said importance, I meant which harmonics have the greatest influence on the resulting motion at the current moment in time.
 
Zhunko:

Oddly enough, the degree of importance of each harmonic is the same. Try to reconstruct the original series without harmonics smaller than 4 bars. I.e. these are harmonics which do not make physical sense in the market. They cannot be reproduced. The original series will be very different from the assembled one.

Moreover, these harmonics are less than one percent of the first harmonic in amplitude

.

That's how much it affects.

Why less than exactly four bars
 

Because a minimum of 4 bars describes one period (a fully completed wave).

--> /\/

 
Zhunko:

Valera, here's a problem for you.

Have you tried adding 1+3 instead of 2+2? Try it!

Your questions are really something! It's obvious you're not at all on the subject.

What do you mean by that?
 
Zhunko:

Because a minimum of 4 bars describes one period (a fully completed wave).

--> /\/


For some reason I see 2 periods here... or rather one and a half here, but if you continue the picture, it becomes clear that there are 2.
 
AlexeyFX:

For some reason I see two periods here... I mean, it's one and a half, but if you continue the picture, it's clear that there are two.

totally agree 1st period is /\ or is it ----------------/\

--------------------------------------------\/ -----------------------/----\

and there's a period and a half /\- - /\ well or so /\ ---/

-------------------------------\/--------------/----\/

 
AlexeyFX:

For some reason I see two periods here... or rather one and a half, but if you continue the picture, it's clear that there are 2.

Double the middle line. You'll get one. It's a sloppy drawing. But it's easier to see. Although, if you shift it, you'll get at least 3 bars. But that's no good. It creates a displaced zero harmonic. So it's still 4 bars.

 
trol222:
What do you mean by that?
That's what I wrote above. You don't need MA if harmonic decomposition is used.
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