[HoustonHam] Math guru wanted - little OT
Rud Merriam
k5rud at arrl.net
Wed Sep 25 12:17:52 EDT 2013
I do not remember the exact details but you convert from frequency to
time by doing an Inverse FFT. The FFT process is the same except for a
minor tweak that eludes me since I have not looked at this in a few
years. Search the web for IFFT.
- 73 -
*Rud Merriam K5RUD
* /Mystic Lake Software <http://mysticlakesoftware.com/>
/
On 9/25/2013 8:47 AM, Vaclav wrote:
> I am a software geek / hobbyist working on an amateur radio applications using FFT. But I ain't no mathematician and could use some assistance from an expert in USING FFT. I got the transfer from time to frequency domain figured out and working, right now I am trying to implement a filter to get rid of the zero coefficient and low frequency components. That is not that hard just deleting them, but eventually I would like to be able do some passband filtering and other cool stuff. So far I have no clue how to implement transfer from frequency to time domain.
>
> Sure would like to hear from someone who could give some hints / assistance.
> 73 Vaclav AA7EJ
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