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Latest posts from topic “Calcolo di una funzione di autocorrelazione” Latest posts from topic “Calcolo di una funzione di autocorrelazione” on “ElectroYou”. 2021-05-13T18:50:18Z https://www.electroyou.it/forum/viewtopic.php?f=7&t=84055 Re: Calcolo di una funzione di autocorrelazione https://www.electroyou.it/forum/viewtopic.php?f=7&t=84055#p887805 brabus 2021-05-18T10:50:13Z 2021-05-18T10:50:13Z
[quote="GioArca67"]Da quando il valor medio di un coseno cambia con la fase iniziale?

Stiamo su "Scherzi a parte" e non me ne ero accorto...

O_/


Moderare i toni, per cortesia.
Siamo tutti qui per imparare e aiutarci a vicenda. Ianero ha descritto il suo problema con dovizia di dettaglio e tutto merita tranne risposte sarcastiche.
Re: Calcolo di una funzione di autocorrelazione https://www.electroyou.it/forum/viewtopic.php?f=7&t=84055#p887378 Ianero 2021-05-13T22:20:53Z 2021-05-13T22:20:53Z
Al di là della presa in giro, sei in grado di impostare una dimostrazione o no?
Quella non è una \phi_0 qualsiasi, ma è [unparseable or potentially dangerous latex formula], basta pensare a una eventuale [unparseable or potentially dangerous latex formula] per renderti conto che quello che dici è falso.
Re: Calcolo di una funzione di autocorrelazione https://www.electroyou.it/forum/viewtopic.php?f=7&t=84055#p887377 GioArca67 2021-05-13T22:13:54Z 2021-05-13T22:13:54Z
Da quando il valor medio di un coseno cambia con la fase iniziale?

Stiamo su "Scherzi a parte" e non me ne ero accorto...

O_/
Re: Calcolo di una funzione di autocorrelazione https://www.electroyou.it/forum/viewtopic.php?f=7&t=84055#p887375 Ianero 2021-05-13T22:07:35Z 2021-05-13T22:07:35Z
Intuitivamente ho capito quello che dici, ma lì [unparseable or potentially dangerous latex formula] in principio può essere qualsiasi cosa.
Vorrei trovare un modo di vederlo matematicamente.
Re: Calcolo di una funzione di autocorrelazione https://www.electroyou.it/forum/viewtopic.php?f=7&t=84055#p887361 GioArca67 2021-05-13T19:46:45Z 2021-05-13T19:46:45Z
qualè il valor medio di un coseno?
Calcolo di una funzione di autocorrelazione https://www.electroyou.it/forum/viewtopic.php?f=7&t=84055#p887355 Ianero 2021-05-13T18:50:18Z 2021-05-13T18:50:18Z
Buongiorno,
mi trovo di fronte al calcolo della funzione di autocorrelazione del seguente segnale:

[unparseable or potentially dangerous latex formula]

che mi viene detto essere:

[unparseable or potentially dangerous latex formula]

dove j è l'unità immaginaria e M_\tau\{...\} è l'operatore di media rispetto a \tau.

Ho provato io a fare il conto, e mi viene invece:

[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]

C'è qualche motivo che non vedo per cui il termine [unparseable or potentially dangerous latex formula] debba annullarsi?