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qpsk modulation
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Frequency shift keying in digital communication and Frequency modulation in analog communication..........
frequency modulation, preferably.
Adaptive delta modulation is used in audio communication systems to avoid the two drawback of delta modulation.
Data modulation is a method of Electronic packing of data. In Data communication data is transmitted through a process which is called "Data Modulation".
pcm is used in mobile...
Modulation is the addition of information to an electronic or optical signal carrier. The modulation can be applied by turning the signal on and off.
AM and FM AM=Amplitude Modulation FM=Frequency Modulation Hope this helps
i refered modulation is the sequence of message in to analog symbol( Simon haykin ,communication systems),,but i am not clear with this,couul u pls clarify?
In olden days all radio stations followed only amplitude modulation to propagate the signals. Presently still some of the radio stations follow the same and mostly have switched over to frequency modulation. Especailly in tv transmission the picture signal is propagated only by amplitude modulation.
A: Dbm or decibel of modulation
Analog