Which of the following wave is known as “amplitude modulated wave” of x(t)?
A. C.x(t) (where C is a constant)
B. x(t)+y(t)
C. x(t).y(t)
D. dx(t)/dt
Answer:A
Which of the following wave is known as “amplitude modulated wave” of x(t)?
A. C.x(t) (where C is a constant) B. x(t)+y(t) C. x(t).y(t) D. dx(t)/dt
Explanation: The multiplicative operation is often encountered in analog communication, where an audio frequency signal is multiplied by a high frequency sinusoid known as carrier. The resulting signal is known as “amplitude modulated wave”.