Module 4 — Digital Modulation#
Digital Modulation
From bits to waveforms and back: FSK and PAM, end to end.
Lessons 8–10 · Software Defined Radios · Dr. Neil Rogers
Where This Module Goes
FSK and PAM from the flowgraph up: pulse shaping, matched filtering, and timing recovery, finishing with a link that carries ASCII text.
Learning Objectives
- I can describe FSK modulation and implement an FSK transmitter and receiver in GNU Radio.
- I can describe PAM theory and identify the pulse-shaping, symbol-rate, and bandwidth trade-offs.
- I can apply matched filtering and symbol-timing recovery to a received PAM signal.
- I can implement a PAM link that transmits and receives ASCII text end-to-end.