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Department of Electronics and Communication VCET,Hyderabad.

DIGITAL SIGNAL PROCESSING
LAB MANUAL

III YEAR II SEMESTER (ECE)

Prepared by: K. Ashok Kumar Reddy

Department of Electronics & Communications Engineering,

Visvesvaraya College of Engineering & Technology,
Ibrahimpatnam.

Digital Signal Processing Lab Manual

Page 1

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Department of Electronics and Communication VCET,Hyderabad.

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD III Year B.Tech. ECE - II Sem L T/P/D C 0 -/3/2

DIGITAL SIGNAL PROCESSING LAB The programs shall be implemented in software (Using MATLAB / Lab view / C programming/ Equivalent) and hardware (Using TI / Analog devices / Motorola / Equivalent DSP processors). 1. Generation of Sinusoidal waveform / signal based on recursive difference equations 2. To find DFT / IDFT of given DT signal 3. To find frequency response of a given system given in (Transfer Function/ Differential equation form). 4. Implementation of FFT of given sequence 5. Determination of Power Spectrum of a given signal(s). 6. Implementation of LP FIR filter for a given sequence 7. Implementation of HP FIR filter for a given sequence 8. Implementation of LP IIR filter for a given sequence 9. Implementation of HP IIR filter for a given sequence 10. Generation of Sinusoidal signal through filtering 11. Generation of DTMF signals 12. Implementation of Decimation Process 13. Implementation of Interpolation Process 14. Implementation of I/D sampling rate converters 15. Audio application such as to plot a time and frequency display of microphone plus a cosine using DSP. Read a .wav file and match with their respective spectrograms. 16. Noise removal: Add noise above 3 KHz and then remove, interference suppression using 400 Hz tone. 17. Impulse response of first order and second order systems. Note: - Minimum of 12 experiments has to be conducted.

Digital Signal Processing Lab Manual

Page 2

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References: 1. Digital Signal Processing Using MATLAB, (Bookware Companion Series): Vinay K. Ingle, John G. Proakis, PWS Publishing Company. Pp. 405-409. 2. Understanding Telephone Electronics, 4th edition, By Stephen J. Bigelow, Joseph J. Carr, Steve Winder,Published by Newnes, 2001, 3. Digital Signal Processing and Applications with the C6713 and C6416 DSK , By Rulph Chassaing, A John Wiley & Sons Inc., Publication, 2005, pp 347-348. 4. Mitra, Sanjit K. Digital Signal Processing: A Computer-Based Approach. New York, NY: McGraw-Hill, 1998, pp. 520-523. 5. www.crazyengineers.com/forum/electrical/dtmf_geort.html 6. www.en.wikipedia.org/dtmf.html 7. www.dsprelated.com/dtmf.html Digital Signal Processing Lab Manual Page 147 www.jntuworld.com
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