LabVIEW

[Newbee_2]

Hi guys me again with another silly problem. I am trying to implement FM modulation using all type of signal(square, triangle, sawtooth) in baseband as well as carrier signal but I only able to find sine and cos trigonometric function in labview 2011 so my output always is sine wave irrespective of the input signal(FM modulated)

How to make the output also square, triangle, sawtooth??? Any help.........

I am attaching my VI along with the post....

[johnsold]

What does a frequency modulated triangle wave look like? If the frequency changes within one cycle, then the output slope must change and the signal is no longer triangular because the lines are not straight.

For a square wave the only thing which needs to change is the time of transitions between levels. Simply calculate when the phase has changed by 180 degrees from the previous transition and generate the next one.

Lynn

[Newbee_2]

Thanks I want to use only sine wave as carrier signal but to test that my code working or not I am using modulation toolkit as a testbench but I am unable to plot resulting waveform in graph. Is some special graph is required to plot the modulated signal graph....

I am using evaluation version of modulation toolkit....

Thanks & Regards....