AIM: Simulation of
Amplitude Modulator & Demodulator using LabVIEW as a virtual instrument.
EQUIPMENT: NI LabVIEW
Software installed on PC.
PROCEDURE:
1.
Open the LabVIEW
window and click on Blank VI.
2.
Create a Simulate Signal Block in the Block Diagram.
Adjust the signal as Sine, frequency as 10Hz, amplitude as 1. Give the name as
Message signal to this.
3.
Similarly repeat the above step and select one more
block of simulate signal as sine and adjust the frequency as 100Hz, amplitude
as 1.Give the name as carrier signal.
4.
On the front panel select graph (named as message
signal) and on the block diagram connect the output of message signal to the input
of the graph.
5.
Similarly select one more graph (named as carrier
signal) and on the block diagram connect the output of the carrier signal to
the input of the graph.
6.
From the block diagram select multiply sign and
connect both signals (message and carrier) to its input.
7.
From the block diagram select divider sign and
connect multiplier output and carrier signal to its input.
8.
On the front panel select two more graphs (named as
modulated and demodulated).
9.
On the block diagram, connect multiplier output as well
as message signal to the modulated graph.
10. Again on the
block diagram, connect divider output to the demodulated graph.
11. Save the
process.
OBSERVATIONS:
1.
Run
the program and observe the modulated and demodulated signals on the front
panel.
2.
Take
printouts of both windows.
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