STUPIDSID
1(a)
Fro the given causal sequences x(n) = {8, 9, 2, 3} and h(n) = {4, 3, 6} find the cross correlation.
5 M
1(b)
State the condition for stability of LTI system and determine for the given discrete time system h(n) = (0.3)nu(n) + 5δ(n), is stable or not.
5 M
1(c)
Differentiate IIR and FIR systems.
5 M
1(d)
For the causal signal x(n) = {2, 2, 4, 4} compute four point DFT using DIT-Fft.
5 M
2(a)
Check whether following system y(n) = 2x(n-1) + x(2n) is:
a. Linear or non Linear
2. Causal or non-causal
3. Time variant or Time invariant
4. Static or Dynamic
a. Linear or non Linear
2. Causal or non-causal
3. Time variant or Time invariant
4. Static or Dynamic
10 M
2(b)
Draw the radix 2 DIT flow graph and find the DFT of the sequence x(n) = {10, 11, 8, 5} using FFT flow graph.
10 M
3(a)
A For x(n)={2 3 →4 5 1 3}, plot the following Discrete Time Signals:
1) x(n-1) 2) x(n)u(-n) 3)x(n-1)u(n-1) 4) x(-n)u(n) 5) x(2n)
1) x(n-1) 2) x(n)u(-n) 3)x(n-1)u(n-1) 4) x(-n)u(n) 5) x(2n)
10 M
3(b)
Determine whether or not the following signals are periodic.
If periodic specify its fundamental peroid,
1. x(n) = sin(0.25πn+0.4)
2. x(n) = cos(0.5nπ) + sin(0.25nπ)
If periodic specify its fundamental peroid,
1. x(n) = sin(0.25πn+0.4)
2. x(n) = cos(0.5nπ) + sin(0.25nπ)
10 M
4(a)
For the FIR digital filter with impluse response given by
h(n) = 2δ (n-4) sketch the magnitude response of the filter.
h(n) = 2δ (n-4) sketch the magnitude response of the filter.
10 M
4(b)
State any five DFT properties.
10 M
5(a)
Find circular convolution of x1(n) = {5, 6, 2, 1} and x2(n) = {3, 2, 1, 4} by computing DFT of x1(n) and x2(n).
10 M
5(b)
Compute Linear Convolution of causal sequence x(n) = {7, 6, 4, 5, 2, 4, 5, 2, 3} and h(n) = {1 2 3 1} using fast overlap save method.
10 M
6(a)
Write a detailed note on Carl's Correlation Coefficient Algorithm.
10 M
6(b)
Write a detailed note on DSP Processor and Architecture.
10 M
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