According to Rayleigh’s theorem, it becomes possible to determine the energy of a signal by________
A. Estimating the area under the square root of its amplitude spectrum
B. Estimating the area under the square of its amplitude spectrum
C. Estimating the area under the one-fourth power of its amplitude spectrum
D. Estimating the area exactly half as that of its amplitude spectrum
Answer:B
According to Rayleigh’s theorem, it becomes possible to determine the energy of a signal by________
A. Estimating the area under the square root of its amplitude spectrum B. Estimating the area under the square of its amplitude spectrum C. Estimating the area under the one-fourth power of its amplitude spectrum D. Estimating the area exactly half as that of its amplitude spectrum