AnsweredAssumed Answered

vrf Using Virtual Source generate FM

Question asked by VRFuser on Nov 29, 2007
"TAN, INN TIAN <inn-tian_tan@utssb.com> wrote:
> Hi All,
>

>
> How do I use 2 Function Generator (Virtual Source) to generate the FM
> modulation?
>


You use the Virtual Source as a carrier signal then post-modulate it using mixers, phase shifters, splitters, whatever you want.
( thses are easy enough to build using formulas )

Or you just generate the signal directly from a formula by feeding a time ramp into whatever math defines your modulation

e.g.

t- time ramp
a(t) - your modulation signal
w(t) - your carrier

fed into   cos( a(t)*w(t)*t )

gives an ideal modulation

You'll likely find good examples in the VRF archives

Stan


--------------------------------------------------------------------------
Stan Bischof  Agilent Technologies  707-577-3994  stan_bischof@agilent.com
--------------------------------------------------------------------------

---
You are currently subscribed to vrf as: ming_meng@agilent.com To subscribe please send an email to: "vrf-request@lists.it.agilent.com" with the word subscribe in the message body.
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list,  email "vrf@agilent.com". 
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "http://www.vrfarchive.com/vrf_archive".
Search the Agilent vrf archive at "http://vee.engineering.agilent.com".

Outcomes