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313.
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314.
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315.
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316.
Statement for Linked Answer Questions :
A sequence x(n) has non-zero values as shown in figure.
[1] The sequence
, will be [2 marks]
[2] The Fourier transform of y(2n) will be [2 marks]
(A) e-j2ω [cos4ω + 2cos2ω + 2]
(B) [cos2ω + 2cosω + 2]
(C) e-jω [cos2ω + 2cosω + 2]
(D) ej2ω [cos2ω + 2cosω + 2]asked in Electronics and Communication Engineering, 2005
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317.
Statement for Linked Answer Questions :
Voltage standing wave pattern in a lossless transmission line with characteristic impedance 50Ω and a resistive load is shown in figure.
[1] The value of the load resistance is [2 marks]
(a) 50Ω
(b) 200Ω
(c) 12.5Ω
(d) 0Ω[2] The reflection coefficient is given by [2 marks]
(a) -0.6
(b) -1
(c) 0.6
(d) 0asked in Electronics and Communication Engineering, 2005
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318.
Statement for Linked Answer Questions :
A symmetric three-level midtread quantizer is to be designed assuming equiprobable occurrence of all quantization levels.
[1] If the input probability density function is divided into three regions as shown in figure, the value of a in the figure is
[2 marks]
(A) 1/3
(B) 2/3
(C) 1/2
(D) 1/4
[2] The quantization noise power for the quantization region between –a and +a in the figure is [2 marks]
(A) 1/9
(B) 4/81
(C) 5/81
(D) 2/81
asked in Electronics and Communication Engineering, 2005
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