Question
State the various techniques used for analog modulation of a digital signal carrier. How are they used for continuous wave transmission and two tone modulation systems? State the advantages of two tone modulation system.
Answer :
Word Count : 274
Analog modulation techniques used for transmitting a digital signal over a carrier involve varying a continuous sinusoidal carrier in accordance with discrete digital data. The principal techniques are Amplitude Shift Keying, Frequency Shift Keying, Phase Shift Keying, and its extension Quadrature Amplitude Modulation. In Amplitude Shift Keying, the amplitude of a continuous carrier is ______ ______ ___ ____ _____ ____.
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Analog modulation techniques used for transmitting a digital signal over a carrier involve varying a continuous sinusoidal carrier in accordance with discrete digital data. The principal techniques are Amplitude Shift Keying, Frequency Shift Keying, Phase Shift Keying, and its extension Quadrature Amplitude Modulation. In Amplitude Shift Keying, the amplitude of a continuous carrier is ______ ______ ___ ____ _____ ____.
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