bandpass filter of cFP input signal

[shh2745]

Hi,

I have a continuous input signal from analog compact field point. In normal, the input signal is steady, but it may oscillate sometimes. I would like to detect the oscillation frequency (0.5HZ~2HZ), that means I have to build a bandpass filter to keep the signal in 0.5 to 2 hz. Is anyone have better idea to implement this function? Thsnks for help.
Fred

[JuanCarlos]

Fred,

Here is a small example on Point by Point filtering. The point by point VIs allow you to perform filtering and other DSP operations one sample at a time. The example uses a butterworth filter that will give you the flattest amplitud response.

Please take a look at the example and let me know if you have any questions.

Regards,

Juan Carlos
N.I.

[shh2745]

Hi,

Thanks for your help. I have looked through the example, and it help me a lot. I am really appreciate for your help. Have a good day.

Fred.