A、source encoder
B、channel encoder
C、digital modulator
D、digital demodulator
A、convert analog signal to digital signal
B、convert digital signal to analog signal
C、combine analog signal with digital signal
A、Digital signals are discrete signals
B、In computers, digital signals is often represented by binary numbers.
C、They are divided into positive logic signal and negative logic signal according to logic.
D、The sound is a discrete value.
A、source encode
B、channel encoder
C、digital modulator
D、digital demodulator
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