Q. Which of the given signals are periodic?

View solution

Q. Check whether the signal is periodic or not?

x(t) = cos(4t) + 2sin(8t)

View solution

Q. Find the periodicity of the following signal.

x(t)=cos((2π/7)t)sin((3π/5)t)

View solution

Q. Find the fundamental period of 1+sin^2 (3π/5)n.

View solution

Q. Which signal is called as energy signal?

View solution

Q. Which signal is said to be power signal?

View solution

Q. Continuous Impulse signal is a power or energy signal?

View solution

Q. Discrete impulse signal is a power or energy signal?

View solution

Q. A unit impulse function has?

View solution

Q. Power spectral density function is a?

View solution

Q. Energy spectral density defines

View solution

Q. Power spectrum describes distribution of _________ under frequency domain.

View solution

Q. How can power spectral density of non periodic signal be calculated?

View solution

Q. What is Wiener-Khinchin theorem?

View solution

Q. According to Parseval’s theorem the energy spectral density curve is equal to?

View solution

Q. Spectogram is the graph plotted against?

View solution

Q. Autocorrelation is a function which matches

View solution

Q. Autocorrelation is a function of

View solution

Q. Autocorrelation is maximum at _______

View solution

Q. Autocorrelation function of periodic signal is equal to _______

View solution