how to demodulation the AM signal using the labview

[yanhuaguang for china]

I want to analyse the AM signal using the card PCI4474,i want to
demodulation the signal using the software,I don't know how to realize
it?
thank you very much

[Nirmal_Sharma]

Hi,

Probably you can use Low pass filter which gives you the original Signal by removing the carrier frequency.

There are lot many vi in LV function pallete-> Analyze-> filters/signal processing etc.

You can use waveform operation vi (LV function pallete -> Waveform -> waveform operations). If you know the carrier frequency, you can divide the modulated waveform by carrier frequency & get the original waveform.

Hope this helps. Your feedbacks are welcome.

Best Regards,
Nirmal Sharma
India

[preston_johnson]

NI now has a modulation, demodulation toolset, which may be of assistance and save some significant time in development. There is a cost of course. http://sine.ni.com/apps/we/nioc.vp?cid=12855〈=US.