decimation( Does decimation.vi have a low pass filter?)

[kasula]

Hello,

    I have a question regarding decimation function (decimation(continuous).vi) in labview. Does it have a low pass filter to take care of aliasing, if yes is it a zero phase filter. Basically I am looking for some thing which can decimate 20KHz sampled signals to 5KHz.

Thanks,

kartik

[NIquist]

The resample VI in the same palette has an anti-aliasing LP filter option.  I'm not sure if it's zero-phase.

[kasula]

Does labview have any vi that has inbuilt low pass filter along with decimation?

Thanks,

kartik

[NIquist · Accepted solution]

Depends on your LabVIEW version and installed toolkits. 

The Digital Filter Design Toolkit  has a decimation VI that includes a LP AA filter.  Open the LabVIEW Help and search for 'decimation' and 'filter' to see what tools are available.