In case anyone is curious, I believe the acronyms used here are the following:

SDR: software-defined radio https://en.wikipedia.org/wiki/Software-defined_radio

CFAR: constant false alarm rate https://en.wikipedia.org/wiki/Constant_false_alarm_rate

RTL-..: a prefix (likely standing for "RealTek Limited") used by Realtek in its chipsets https://en.wikipedia.org/wiki/Realtek

DARPA R&D: The Defense Advanced Research Projects Agency is a research and development agency of the United States Department of Defense https://en.wikipedia.org/wiki/DARPA

DVB-T: digital video broadcasting — terrestrial https://en.wikipedia.org/wiki/DVB-T