**EC8553 Important 8 Mark Questions DISCRETE TIME SIGNAL PROCESSING**

EC8553 Important 8 Mark Questions DISCRETE TIME SIGNAL PROCESSING Regulation 2017 Anna University free download. DISCRETE TIME SIGNAL PROCESSING Important 8 Mark Questions EC8553 pdf free download.

**Sample EC8553 Important 8 Mark Questions DISCRETE TIME SIGNAL PROCESSING:**

Summarize the following properties of DFT: Periodicity, Conjugation, Circular frequency shifting & Multiplication. (13)

How will you determine the circular convolution of the following sequence𝑥(𝑛)={1,1,2,1}, ℎ(𝑛)={1,2,3,4} using DFT and IDFT method? (13) EC8553 Important 8 Mark Questions DISCRETE TIME SIGNAL PROCESSING

Construct the circular convolution of two finite duration sequences𝑥1(𝑛)={1,−1,−2,3,−1}; 𝑥2(𝑛)={1,2,3}. (13)

Demonstrate the output y(n) of a filter whose impulse response ℎ(𝑛)={1,1,1} and input signal 𝑥(𝑛)={3,−1,0,1,3,2,0,1,2,1} using overlap save method and overlap add method. (13)

Illustrate the 8-point DFT of a sequence 𝑥(𝑛)={0.5,0.5,0.5,0.5,0,0,0,0}. (13) EC8553 Important 8 Mark Questions DISCRETE TIME SIGNAL PROCESSING

(i) Analyze the inverse DFT of 𝑋(𝐾)={1,2,3,4} (7)

(ii) Compare overlap add and overlap save method. (6)

(i) Develop the steps for radix-2 DIT FFT algorithm. (7)

(ii) Solve the 8-point of a given sequence 𝑥(𝑛)=𝑛+1 using DIT-FFT algorithm. (6) EC8553 Important 8 Mark Questions DISCRETE TIME SIGNAL PROCESSING

(i) Describe the steps for radix-2 DIF FFT algorithm. (7)

(ii) Find the 8-point of a given sequence 𝑥(𝑛)={1,2,2,1,1,2,2,1} using DIF-FFT algorithm. (6)

(i) Show that FFT algorithm helps in reducing the number of computations involved in DFT computation. (7)

(ii) Discuss about overlap add method for convolution. (6)

Examine the 8-point DFT of the sequence 𝑥(𝑛)={2,2,2,2,1,1,1,1} using decimation in time FFT algorithm. (13) EC8553 Important 8 Mark Questions DISCRETE TIME SIGNAL PROCESSING

Estimate the DFT for the sequence {1,2,3,4,4,3,2,1} using Radix-2 Decimation in Frequency algorithm. (13)

Calculate IDFT of the sequence X(K)={7,−0.707−j0.707,−j,0.707−0.707,1,0.707+j0.707,j,−0.707+j0.707 using DIT algorithm.

Subject name | DISCRETE TIME SIGNAL PROCESSING |

Short Name | DTSP |

Semester | 5 |

Subject Code | EC8553 |

Regulation | 2017 regulation |

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