QANI Trellis-coded signal structure

QPSK demodulator with I and Q post-detection data correction

QPSK power amplifier distortion correction system

QPSK system with one cycle per Baud period

QPSK transmission system having phaselocked tracking filter for

QPSK/QBL-MSK waveform enhancement

Quadrature amplitude modulation communication system with transp

Quadrature amplitude modulation synchronization method

Quadrature amplitude modulator with distortion compensation

Quadrature compensation for orthogonal signal channels

Quadrature demodulator

Quadrature measurement and calibration of a vector modulator

Quadrature modulation circuit

Quadrature modulation circuit

Quadrature multiplexed post correlation IF channel

Quadrature receiver

Quadrature signal generator having digitally-controlled phase an

Quadrature transposition stage

Quadrature-quadrature phase shift keying

Quadrature-quadrature phase shift keying with constant envelope