Q

QPSK - Quadrature Phase Shift Keying; 4 phase digital modulation.

Quantization - A process in which the continuous range of values of an input signal is divided into non-overlapping sub-ranges (chords) and to each sub-range a discrete value of the output is uniquely assigned a binary number.

Quantization Distortion - The inherent distortion introduced in the process of quantization.

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