Contents tagged with Filtering

  • Frequency Xlating FIR filter and channeling basics in GnuRadio

    Written by on 4.9.2015. 10:41:00
    GnuRadio, low-pass filter, filtering

    In this post I'm hoping to describe the filtering process as simply as possible. The reason for this is it took me quite a lot of reading to actually understand what is happening during the filtering, mostly because most of the articles I've read were either listing what needs to be done without actually explaining how it works, or listing detailed calculations, equations and hardware implementations without explaining it in plain words. Most of these articles have also assumed the reader is an expert in the topic, effectively excluding interested enthusiasts who are still beginning to grasp the basics of DSP. So this will hopefully be helpful for the mentioned folks to tie up loose ends. Here is the list of the things I will try to cover: