Digital Communication Lab (B.Tech)

Experiments on PCM, delta modulation, ASK, FSK and PSK.

6 MonthsDuration 5Chapters14Topics

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Syllabus · पाठ्यक्रम

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01Experiments 1: Sampling and PCM 3 topics

Verification of sampling theorem (natural and flat-top sampling)
PCM modulation and demodulation
Effect of number of bits on quantisation noise

02Experiments 2: Delta and Adaptive Delta Modulation 3 topics

Delta modulation and demodulation
Slope overload and granular noise
Adaptive delta modulation

03Experiments 3: Line Coding and TDM 2 topics

Unipolar, polar, bipolar (AMI) and Manchester codes
Time division multiplexing of two signals

04Experiments 4: ASK and FSK 2 topics

ASK generation and detection
FSK generation and detection

05Experiments 5: PSK, DPSK and QPSK 4 topics

BPSK generation and detection
DPSK modulation and demodulation
QPSK modulation and demodulation
Simulation of BER of BPSK in MATLAB

About

You will be able to

Generate and observe PCM, delta and adaptive delta modulated signals on trainer kits
Verify the sampling theorem and the effect of under-sampling
Generate line codes and a TDM signal and identify them on a CRO
Generate and demodulate ASK, FSK, BPSK, DPSK and QPSK signals
Record waveforms neatly and explain the results in the viva

Who it is for

B.Tech Electronics & Communication Engineering students of Semester 6 (AKTU)
Students who need lab-record and viva preparation for the practical exam

What you need

Digital Communication theory (taught in the same semester)
Use of CRO and function generator

Questions

Which syllabus does the Digital Communication Lab course follow?

It follows the current AKTU B.Tech (ECE) scheme, Semester 6. If your university or college uses a different scheme, the centre follows your own university syllabus.

Do you cover numericals and previous year questions?

Yes. Each unit is taught with solved numericals and AKTU previous-year questions.

What is marked in the practical exam?

Performing one experiment, the waveforms and readings, the lab record and the viva.