ALGLIB forum
It is currently Thu Jul 18, 2024 12:53 am

All times are UTC

Forum rules

1. This forum can be used for discussion of both ALGLIB-related and general numerical analysis questions
2. This forum is English-only - postings in other languages will be removed.

Post new topic Reply to topic  [ 1 post ] 
Author Message
 Post subject: FFTC1D problem
PostPosted: Sun Aug 06, 2017 8:24 am 

Joined: Tue May 23, 2017 2:30 pm
Posts: 3
I have been using procedure FFTC1D and FFTC1DInv successfully to filter a series of samples in a Delphi program.
In the same program I have created a second, analog procedure but this one gives problems: the outcome does not correspond to my expectations.
Further investigations gives me hope: shifting the outputsignal half the total length of the series gives a result that corresponds to my expectations.
Is this normal behavior (and if so: when does this occur) or am I doing something wrong?

I realize that when the signal is made continuous bij replicating the series the result may be considered as normal: the output will be replicated too.

The environment: Windows 7, Delphi 7.0

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC

Who is online

Users browsing this forum: No registered users and 22 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group