GNU Radio for SDR Engineers: Master DSP, Python, C++, Modulation, Demodulation & Real-Time Signal Processing

You've tuned into signals. Now it's time to build the radio itself. Most SDR enthusiasts never cross the invisible line between operator and engineer. They know how to launch an app and watch a waterfall-but they cannot explain why the filter works, how the Costas loop locks, or what happens beneath the hood when GNU Radio Companion generates its Python. If that boundary feels familiar, you are standing exactly where this book begins. GNU Radio for SDR Engineers is the definitive technical deep-dive for developers, computer science students, and serious hobbyists who are done with configuration and ready for craftsmanship. Inside, you will move beyond pre-built blocks to construct complete receivers from the ground up: designing FIR and IIR filters with mathematical precision, implementing digital modulation from ASK to 64-QAM, recovering timing with Gardner and Mueller-Müller algorithms, and scripting headless, real-time DSP applications in Python and C++. You will master the streaming scheduler, manage buffer architectures, create reusable hierarchical subsystems, and deploy Out-of-Tree modules that extend GNU Radio's core capabilities. By the final page, you will not merely execute flowgraphs. You will architect them-transforming sampled electromagnetic energy into reliable, testable, deployable systems that answer to your design, not someone else's defaults. The airwaves are waiting. Stop clicking buttons in the dark. Start engineering the signal.