QPSK demodulator
Quadrature multi-frequency ranging (QMFR) applied to GPS...
Quadrature multi-frequency ranging (QMFR) applied to GPS...
Quadrature phase modulation receiver for spread spectrum...
Quadriphase spreading codes in code division multiple access...
Qualification and selection of the frequency channels for an...
Quasi-optimal receiver for tracking and acquisition of a split s
Quasi-orthogonal code mask generating device in mobile...
Quotient phase-shift processor for digital phase-locked-loops