What is the frequency response of the system described by the system f – McqOptions

MCQOPTIONS

1.	What is the frequency response of the system described by the system function H(z)= ( frac{1}{1-0.8z^{-1}} )?
A.	( frac{e^{j }}{e^{j }-0.8} )
B.	( frac{e^{j }}{e^{j }+0.8} )
C.	( frac{e^{-j }}{e^{-j }-0.8} )
D.	None of the mentioned
Answer» B. ( frac{e^{j }}{e^{j }+0.8} )

Discussion

No Comment Found

Related MCQs

What is the frequency response of the system described by the system function H(z)= ( frac{1}{1-0.8z^{-1}} )?
An LTI system is characterized by its impulse response h(n)=(1/2)nu(n). What is the spectrum of the output signal when the system is excited by the signal x(n)=(1/4)nu(n)?
The output of the Linear time invariant system cannot contain the frequency components that are not contained in the input signal.
If an LTI system is described by the difference equation y(n)=ay(n-1)+bx(n), 0<a<1, then what is the output of the system when input x(n)= (5+12sin frac{ }{2}n-20cos( n+ frac{ }{4}) )?(Given a=0.9 and b=0.1)
If an LTI system is described by the difference equation y(n)=ay(n-1)+bx(n), 0 < a < 1, then what is the parameter b so that the maximum value of |H( )| is unity?
What is the magnitude of the frequency response of the system described by the difference equation y(n)=ay(n-1)+bx(n), 0<a<1?
What is the response of the system with impulse response h(n)=(1/2)nu(n) and the input signal x(n)=10-5sin n/2+20cos n?
What is the magnitude of H( ) for the three point moving average system whose output is given by y(n)= ( frac{1}{3}[x(n+1)+x(n)+x(n-1)] )?
If h(n) is the real valued impulse response sequence of an LTI system, then what is the phase of H( ) in terms of HR( ) and HI( )?
If h(n) is the real valued impulse response sequence of an LTI system, then what is the imaginary part of Fourier transform of the impulse response?