FAQs

FAQ/024 KAM-500: What is the real sampling frequency of a parameter that goes to different destinations at different rates? What is the real cut-off frequency of the filter?

August 18, 2014

To know the real sampling frequency of a parameter when there is more than one "Sink" in the system (PCMs, Ethernets or CompactFlash Memory module), all the "Sinks" where this parameter is going to have to be considered. The real sampling frequency will be the highest i.e. if the same parameter mentioned above is sent at 50 Hz in the PCM Frame is logged into a CompactFlash Memory at 400 Hz, the real sampling frequency for the parameter will be 400 Hz.

In the last example, if a parameter coming from an Analog Module has the cutoff frequency set to Fs/4, the real cut-off frequency of the filter will be 400/4=100 Hz (as opposed to the 12.5 Hz that you’d expect if looking only at the PCM Sampling Rate). 23

Share This Article

  • Share on Linkedin
  • Share on Twitter
  • Share on Facebook
  • Share on Google+
Connect With Curtiss-Wright Connect With Curtiss-Wright Connect With Curtiss-Wright
Sales

CONTACT SALES

Contact our sales team today to learn more about our products and services.

YOUR LOCATION

PRODUCT INFORMATION

Support

GET SUPPORT

Our support team can help answer your questions - contact us today.

REQUEST TYPE

SELECT BY

SELECT Topic