MATLAB QUESTIONS

MAT LAB stands for what?
Which function is used to perform 2D DFT using FFT algorithm?
Which function is used to perform Kaiser window? Give the sample syntax for that.
What is the latest version of MATLAB?
List the areas of applications for MATLAB?
Which function is used to find the impulse invariant IIR digital filter?
Which function is used to perform 1D &2D DCT ?

8. Which function is used to find histogram of image?

9. Which function is used to find histogram equalization of image?

10. Which function is used to find correlation of a sequence?

CIRCULAR CONVOLUTION QUESTIONS

What is the length of output sequence after circular convolution if the lengths of input & impulse responses are M1 & M2 respectively?

What is difference between linear shifting & circular shifting of signal? Show with example.

What is difference between linear & circular folding of signal? Show with example.

LINEAR CONVOLUTION QUESTIONS

1. What is the requirement for convolution?.

2. What is the difference between convolution & correlation?

3. What is meant by impulse response?

4. Is it possible to represent any discrete time signal in terms of impulses? If yes,

represent by using example.

5. Draw the h(2n-k) & h(n-2k) for the following sequence

h(n) = { 4 3 2 1} assume (i) k= 3 (ii) k =5.

6. Write the expressions for LTI system convolution formula & causal LTI system

convolution formula.

7. What us the length of linear convolution if length of input & impulse responses are

N₁ & N₂ respectively?

8. What is the difference between continuous and discrete convolution?

FIR FILTER QUESTIONS

What are the advantages of FIR as compared to IIR?
How many types of FIR design methods are used in real time?.
What is meant by Gibbs Phenomenon? Where we found such type of effect in FIR filters?
What are the advantages& disadvantages of Rectangular window FIR filter as compared to remaining window techniques?
Which window technique having less peak amplitude of side lobe as compared to all?
What do you understand by linear phase responce?
To design all types of filters what would be the expected impulse response?
What are the properties of FIR filter?.
How the zeros in FIR filter is located?
What are the desirable characteristics of the window?
What are the specifications required to design filter?

IIR FILTER QUESTIONS

What is meant by IIR filter?
What is the difference between recursive & non-recursive systems?
Write the difference equation for IIR system.
What are the mapping techniques in IIR filter design? Discuss the advantage & disadvantages of them.
What are IIR analog filters? What are the advantages & disadvantages of them?
What is the disadvantage in impulse invariance method?
What does warping effect mean? Where we found this effect? How can we eliminate warping effect
Explain the pole mapping procedure of Impulse invariant & bilinear transformation method.
For given same specification which difference we found in Butter worth & Tchebyshev filter.
What is the difference between type I & type II Tchebyshev filters?.
Where the poles are located for Butter worth & Tchedbyshev filters?
What is meant by spectral transformation?
Why we need spectral transformation in IIR filter?

Fast Fourier Transforms QUESTION

1. What is the difference between continuous time & discrete time Fourier transform?

What is the condition for convergence of Fourier transform?
What is the difference between discrete Time Fourier Transform (DTFT)& DFT?
What is the difference between Z transform & DFT?
State convolution property of the DFT? Where we could use the convolution property?
State Parseval’s theorem.?
State correlation property of the DFT.?
What is the difference between radix 2 & radix4 FFT algorithms?
Why we need FFT?.
What is the difference between decimation in time (DIT FFT) & Decimation in frequency (DIFFFT) algorithms?
What is meant by ‘in-place’ computation in DIF & DIF algorithms?
Which properties are used in FFT to reduce no of computations?

POWER SPECTRUM DENSITY QUESTION

What is the difference between correlation & auto correlation function?
What is the difference between PSD & ESD?
What is the unit for energy density spectrum?
What is the formula for PSD of a function?
“Same power density spectrum signals always have same magnitude & phase spectrums” Is above statement true (or) False: Justify your answer.
If we know the impulse response of the system, the How can you find output signal power density from the input signal?
What is the unit for power density spectrum?
What is the relation between auto correlation & PSD of a function ?

DSP PROCESSORS QUESTIONS

How many types of DSP processors are available in the market?
TMS 320C6X, ‘C’ stands for what?
What are the features of TMS 320C6X processor?
What is meant by VLIW architecture? Why we required in DSP processor?
How many functional units are in TMS 320C6X DSP processor?
What is meant by Circular addressing mode how is it useful for DSP?
Which instruction is used to move 16 bit constant in to the upper bits of a register?
What is the difference between Von Neumann architecture & Harvard architecture?
Which architecture is used in DSP processor?
How many instructions can we execute per cycle in TMS320C6X DSP processor?
What are the applications for the TMS320 DSP’s?
Which soft ware tool is required to compile and run the DSP assembly program ?
What is the difference between full version Code composer studio &DSK CCS?