how to find the frequency of the signal using cvi if u have array of data points

[frequency]

i am acquring the signal from oscilloscope using gpib.so i will get around 1024 samples from which i have to find the frequency of the signal and rms value is there any function from which i will get the frequency of the signal?

[Jeremy_L]

Hi,

There are a variety of frequency domain related function panels available to you under the Advanced Analysis Library in CVI. The FFT function panel (under Signal Processing >> Frequency Domain) takes in an array of double values to generate a FFT. Then, you can also use the RMS function panel (also under Advanced Analysis >> Statistics >> Basics), which takes an input array and calculates the rms value for you.

Jeremy L.
National Instruments