I don't understand the math, but the ability to rotate the time/frequency of a sample of data to filter out chirps and things like that via DSP sounds damned ha

I don't understand the math, but the ability to rotate the time/frequency of a sample of data to filter out chirps and things like that via DSP sounds damned handy in some cases. I started learning DSP playing around with audio signals in GNU Radio. Filtering gets a lot easier if you have IQ signals, so you can shift the frequencies up or down below zero, and back up. There are types of filtering you can do that way, that just won't work with only REAL signals. This is another powerful tool for that toolbox. Thanks! This looks like an interesting read: FRFT based Method of Modulation Techniques for SDR https://inpressco.com/wp-content/uploads/2013/09/Paper59304-307.pdf https://inpressco.com/wp-content/uploads/2013/09/Paper59304-...