Expand description
Quadrature Phase Shift Keying (2 bits/symbol). QPSK modulation and demodulation.
Quadrature Phase Shift Keying maps two bits per complex symbol:
- bit 0 → I = ±1/√2
- bit 1 → Q = ±1/√2
Structs§
- Qpsk
- QPSK modulator/demodulator with configurable noise parameters.
Functions§
- demodulate
- Demodulate QPSK symbols to soft-decision i16 LLRs.
- modulate
- Modulate packed bits to QPSK symbols.