FM demodulation signal

[JessieChuah-dis]

hi all,

need your help in creating the PLL FM demodulated signal...

I know how to come out the graph for the FM modulation but after the bandpass i wanted to create the FM demodulation signal but i was not sure how to create the source code...

Please advise.
thank you.
Regards,

[Fred_Kohlhepp]

If you post a sheet giving us a place to start you'll get a more positive and helpfull response

Fred Kohlhepp
fkohlhepp@sikorsky.com

[ptc-1368288]

Would that help for a start ?

jmG

[JessieChuah-dis]

hi this is the example on how to modulate the FM signal.Refer attachment.

Hence, i need help to use mathcad to calculate out the demodulated signal and the graph.

Thankz.

[JessieChuah-dis]

Forgot to put attachment... Here go the attachment.

[ptc-1368288]

On 8/28/2009 1:32:07 AM, JessieChuah wrote:
>Forgot to put attachment...
>Here go the attachment.
________________________

If you wish for a much greater audience to read your work sheet, "Save as" as low as Mathcad 8, or maybe lower as low as Mathcad 6. There is lot of stuff DSP in Mathcad 6, before the programmed version 7 was introduced, though your project does not seem to require programming. Your attachment is limited to Mathcad 14 users only.

jmG

[ptc-1368288]

On 8/28/2009 1:32:07 AM, JessieChuah wrote:
>Forgot to put attachment...
>Here go the attachment.
________________________

Jessie,

The Mathcad DSP collection I was talking about was a Mathsoft web collection. I have all the names but since PTC acquired Mathsoft, the link to to this collection is now dead. However, the same work sheets might have been museumed in the actual PTC repository. Maybe a search will lead you to all those work sheets.

Sorry for not being able to help +. Good luck

jmG