electronics and communication project study

[schnider_911]

hi to all.. can u pls give me an idea on wat would be a best project study for communication.... just a simple project would be enough.... thanx... ^_^

 

[the_risk_master]

How about an Amplitude Modulated FM Transmitter...

Heres the idea: Digital signals are carries by AM signals while transmitting FM analog information. Its like a dual modulation technique with only single carrier.

though Im still working and experimenting on it, I hope youll have a better idea than mine.

 

[schnider_911]

ei. can u send me some more details about ur idea on amplitude modulation FM transmitter..... hoe will it work???

 

[hermin]

thats a nice idea,

you would have problems with the two modulating signals, right?

 

[the_risk_master]

Hi Sir Hermin,

Yes Im having trouble in the analog and modulating signals, My idea is to modulate analog information with FM technique, while the digital information is fed into the carrier voltage of the FM signal (to vary the FM carrier amplitude) this serves as ASK technique for digital modulation.

Have you had a better idea?

Ill post my MATLAB simulation later..

Added after 8 minutes:

Ah, here it is....
See my idea works in this simulation, but in my prototype, nothing is recovered in the digital transmission