ANALOG and DIGITAL COMMUNICATION LABORATORY (18TEL67)

                                       

ANALOG and DIGITAL COMMUNICATION  LABORATORY

• Course Code : 18TEL67 
• CIE Marks :40 
• SEE Marks : 60
• Lecture Hours/Week: 02 Hours Tutorial (Instructions) + 02 Hours Laboratory
• RBT Level : L1, L2, L3 
• Exam Hours : 03
• CREDITS—02

Course Learning Objectives: This Laboratory course will enable the Students to

• Understand the Analog modulation and demodulation techniques.
• Study the concepts of Time Division Multiplexing.
• Understand the designing of Analog and Digital Modulation schemes.
• Study and analyze the generation of Line Codes.
• Model an Optical Communication System and study its Characteristics.
• Gain hands on experience in Simulating the Digital Communication concepts

Laboratory Experiments

PART-A: Following Expt. 1 to Expt. 5 have to be performed using discrete components.

1. Amplitude Modulation and Demodulation: i) Standard AM, ii)DSBSC (LM741 and LF398 ICs can be used)
2. Frequency modulation and demodulation (IC 8038/2206 can be used) 
3. Pulse sampling, flat top sampling and reconstruction 
4.Time Division Multiplexing and Demultiplexing of two bandlimited signals.
5.PSK and FSK Generation & Detection.
6.DPSK & QPSK Generation and Detection.
7.Generation of Line Codes.
8.Measurement of Propagation Loss, Bending Loss and Numerical Aperture POHQM of an Optical Fiber.

PART-B: Simulation Experiments using SCILAB/MATLAB/Simulink or LabVIEW

1. Pulse code Modulation and Demodulation.
2. Delta modulation, Adaptive delta Modulation.
3. Simulate the transmission of baseband signals with raised cosine Transmitter Filter and Plot Eye Diagram.
4. Computations of the Probability of bit error for coherent binary ASK, F SK and PSK for an AWGN Channel and Compare them with their Performance curves.
Course Outcomes: At the end of the Course the Students will be able to:
1. Demonstrate Time Division Multiplexing.
2. Design and test Analog and Digital Modulation and demodulation circuits.
3. Design and Generate Line codes for Signal Transmission.
4. Analyze the characteristics of an optical communication system.
5. Simulate the Digital Communication concepts, Compute and Display various parameters along with Plots/Figures.

Conduct of Practical Examination:

• All Laboratory Experiments are to be included for Practical Examination.
• Students are allowed to pick one Experiment from the lot.
• For examination one question from PART-A and one question fromPART-B to be set.
• Strictly follow the instructions as printed on the cover page of answer script for breakup of marks.
• Change of Experiment is allowed only once and the Marks allotted for the Procedure part to be made zero.