modulation
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11 Terms
amplitude modulation
amplitude modulayion is the technique where the amlitude of carrier wave varies according to amplitude of message signal , while the phase and frequency of carrier remains unvhnage
modulation
the process of converting one signal form to the other
two tyoes of modulatuon
analog data modulation technique
digital data modulation tecn=chnique
analog data modulation examp
amplitude modulation , frequency modulation and phase modulation
digital data modulation techniques
ASK , FSK , PSK … amplitude shift key , fre..ect
used of amplitude modulation
Short wave transmisiion , medium wave transmission , radio transmission
frequency modulatioon
the frrequency of the carrier wave is varied according to the amplitude of modulation signal , keeping phase and amplitude constant.
frequency modulation used in
radio transmission
phase modulation
the pase of carrier wave is varied according to the instanoeus ampliitude of modulating signal frequency and amplitude is constnt .
phase mosulation used in
blue tooth communication and , sattelliite communication
Note 
Flashcards (33)