In terms of software-defined radio learning resources, I can wholly recommend PySDR: https://pysdr.org/ https://pysdr.org/ It's written by one of the GNURadio

In terms of software-defined radio learning resources, I can wholly recommend PySDR: https://pysdr.org/ https://pysdr.org/ It's written by one of the GNURadio developers, but it uses NumPy and SciPy instead so you really get a feel for the low-level algorithms. Concepts are well explained and build on each other from module to module.