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ECE - Practice Test - 46

Q1:

Power spectrum describes distribution of _________ under frequency domain 

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Q2:

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

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Q3:

What is Wiener-Khinchin theorem? 

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Q4:

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

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Q5:

Spectogram is the graph plotted against? 

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Q6:

Autocorrelation is a function which matches 

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Q7:

Autocorrelation is a function of 

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Q8:

Autocorrelation is maximum at _______ 

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Q9:

Autocorrelation function of periodic signal is equal to _______ 

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Q10:

Autocorrelation is a _______ function 

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Q11:

Autocorrelation function of white noise will have? 

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Q12:

Random variables give relationship between _____ 

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Q13:

The distribution function of random variable is 

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Q14:

The distribution function of -(infinity) and (infinity) is _____ 

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Q15:

The value of the probability density function of random variable is 

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Q16:

Which gives the measure of randomness of the random variable? 

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Q17:

Random process is a function of ______ 

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Q18:

A random process is called as stationary in strict sense if 

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Q19:

For a stationary process, autocorrelation function depends on 

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Q20:

The autocorrelation function is maximum at 

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Q21:

Standard deviation is ______ 

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Q22:

The average power of white noise is 

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Q23:

White noise has _____ mean and ______ variance 

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Q24:

The process of data conversion along with formatting the data is called as ______ 

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Q25:

Formatting is the process which includes 

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