B.TECH - Semester 5 digital signal processing Question Paper 2021 (dec)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Using DIT-FFT algorthm, find the 4 point DFT of the sequence $x(n)=[1,2,0,1]$.
- Write a short nole on DCT and ils kernel matrix.
- Find the response of the system for the inpul $x(n)=[1,2,1,1]$. The impulse response of the system is given by h $(n)=[1,0,1,0]$. 4 Compare FIR and IIR fillers.
- Write shorl note on impulse invariant Iransformalion.
- Realize the system given by the difference equation in Direct form-2. $y(n)=-0.1 y(n-1)+0.72 y(n-2)+0.7 x(n)-0.252 x(n-1)$.
- Explain Gibb's phenomenon and its remedy.
- Convert the analog filler with system function $H_{a}(s)=\frac{s \div 1}{(s+0.1)^{2}+9}$ into digital filler using impulse invariant transformalion.
- Draw and explain the block diagram of Trans-multiplexer.
- Write short nole on floaling point arithemalic.
- Determine the 4 point DFT of the sequence $X(n)=[1,2,3,4]$ and verity the result atter linding IDFT of the oulpul oblained, use DIF-FFT algorithm.
- State and prove the circular frequency shift and convolution property of DFT.
- Explain DFT and IDFT of a sequence and compule the 8 point DFT of the sequence $x(n)=[1,2,3,4,3,2,1]$. 11 Design a Butlenworth IIR digilal filter which salisfies the following specification (use billinear transiormation). $0.707 \leq\left|H\left(e^{...
- Design an ideal high pass filler wilh the specification given below. The arder of the filler is given as 10. $$ \begin{aligned} & \left|H\left(e^{j w}\right)\right|=1 \text { for } \frac{\pi}{4} \leq|w| \leq \pi \\ & \left|H\left(e^{\mu}\right)\righ...
- Realize the system given by the difference equalion in cascade and parallel form, $$ y(n)=\frac{3}{4} y(n-1)-\frac{1}{8} y(n-2)+x(n)+\frac{1}{3} x(n-1) . $$
- Explain the quantization process and errors introduced due to quantization.
- Explain in detail about decimation and interpolation.
- With block diagram explain TMS320C6713 DSP processor. ( $6 \times 10=60$ Marks)