**EC8553 Question Bank DISCRETE TIME SIGNAL PROCESSING**

EC8553 Question Bank DISCRETE TIME SIGNAL PROCESSING Regulation 2017 Anna University free download. DISCRETE TIME SIGNAL PROCESSING Question Bank EC8553 pdf free download.

**Sample EC8553 Question Bank DISCRETE TIME SIGNAL PROCESSING:**

Evaluate the direct form I & II structure of the system function

????(????)=1+2????−1−3????−2+4????−3+5????−4 (13)

Realize a direct form and linear phase FIR structures with the following impulse response. Which is the best realization and why? ℎ(????)=????(????)+13????(????−1)−14????(????−2)+13????(????−3)+????(????−4).

(13)

(i) Consider an FIR lattice filter with coefficients ????1=12; ????2=13; ????3=14 . Find the FIR filter coefficients for the direct form structure.

(7) EC8553 Question Bank Discrete Time Signal Processing

(ii) An FIR filter is given by the difference equation ????(????)=2????(????)+45????(????−1)+32????(????−2)+23????(????−3). Draw its lattice form. (6)

Show that an FIR filter has linear phase if the unit sample response satisfies the condition ℎ(????)=ℎ(????−1−????). Also discuss symmetric and antisymmetric case of FIR filter when ???? is even. (13)

Design an ideal low pass filter with a frequency response ????????(????????????)={1 ???????????? −????2≤????≤????20 ???????????? ????2≤|????|≤????

Find the values of ℎ(????) for ????=11. Find ????(????). (13) EC8553 Question Bank Discrete Time Signal Processing

Using a rectangular window technique, Illustrate a low pass filter with pass band gain of unity, cut-off frequency of 1000 Hz and working at a sampling frequency of 5 KHz. The length of the impulse response should be 7.

(i) A band reject filter of length 7 is required it is to have lower and upper cut off frequencies of 3kHz and 5 kHz respectively. The sampling frequency is 20 kHz. Discover the filter coefficient using hanning window. (11)

(ii) Inspect the frequency domain characteristics for Rectangular and Hanning Window. (2) EC8553 Question Bank Discrete Time Signal Processing

(i) How to design a FIR band stop filter to reject frequencies in the range 1.2 to 1.8 rad/sec using hamming window, with length ????=6.

(10) EC8553 Question Bank Discrete Time Signal Processing

(ii) Label the linear phase structure of the above band stop FIR filter.

Subject name | DISCRETE TIME SIGNAL PROCESSING |

Short Name | DTSP |

Semester | 5 |

Subject Code | EC8553 |

Regulation | 2017 regulation |

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