Which of the following is the right way of representation of equation that contains only the positive frequencies in a given x(t) signal?
A. X+(F)=4V(F)X(F)
B. X+(F)=V(F)X(F)
C. X+(F)=2V(F)X(F)
D. X+(F)=8V(F)X(F)
Answer:A
Which of the following is the right way of representation of equation that contains only the positive frequencies in a given x(t) signal?
A. X+(F)=4V(F)X(F) B. X+(F)=V(F)X(F) C. X+(F)=2V(F)X(F) D. X+(F)=8V(F)X(F)
Explanation: In a real valued signal x(t), has a frequency content concentrated in a narrow band of frequencies in the vicinity of a frequency Fc. Such a signal which has only positive frequencies can be expressed as X+(F)=2V(F)X(F)