Power spectral density function is a?
a) Real and even function
b) Non negative function
c) Periodic
d) All of the mentioned
Power spectral density function is a? Read More »
a) Real and even function
b) Non negative function
c) Periodic
d) All of the mentioned
Power spectral density function is a? Read More »
a) Signal energy per unit area
b) Signal energy per unit bandwidth
c) Signal power per unit area
d) Signal power per unit bandwidth
Energy spectral density defines Read More »
a) Mean
b) Variance
c) Gaussian
d) None of the mentioned
Power spectrum describes distribution of _________ under frequency domain. Read More »
a) By integrating
b) By truncating
c) By converting to periodic
d) None of the mentioned
How can power spectral density of non periodic signal be calculated? Read More »
a) Spectral density and auto-covariance makes a fourier transform pair
b) Spectral density and auto-correlatioon makes a fourier tranform pair
c) Spectral density and variance makes a fourier tranform pair
d) None of the mentioned
What is Wiener-Khinchin theorem? Read More »
a) Area under magnitude of the signal
b) Area under square of the magnitude of the signal
c) Area under square root of magnitude of the signal
d) None of the mentioned
According to Parseval’s theorem the energy spectral density curve is equal to? Read More »
a) Frequency domain
b) Time domain
c) Frequency & Time domain
d) None of the mentioned
Spectogram is the graph plotted against? Read More »
a) Two same signals
b) Two different signal
c) One signal with its delayed version
d) None of the mentioned
Autocorrelation is a function which matches Read More »
a) Time
b) Frequency
c) Time difference
d) Frequency difference
Autocorrelation is a function of Read More »
a) Unity
b) Origin
c) Infinite point
d) None of the mentioned
Autocorrelation is maximum at _______ Read More »