COURSE OBJECTIVES :

• To study the AM & FM Modulation and
• To learn and realize the effects of sampling and
• To understand the PCM & Digital Modulation.
• To Simulate Digital Modulation
• To Implement Equalization Algorithms and Error Control Coding Schemes.

LIST OF EXPERIMENTS

1. AM- Modulator and Demodulator
2. FM – Modulator and Demodulator
3. Pre-Emphasis and De-Emphasis.
4. Signal sampling and
5. Pulse Code Modulation and Demodulation.
6. Pulse Amplitude Modulation and
7. Pulse Position Modulation and Demodulation and Pulse Width Modulation and
8. Digital Modulation – ASK, PSK,
9. Delta Modulation and
10. Simulation of ASK, FSK, and BPSK Generation and Detection
11. Simulation of DPSK, QPSK and QAM Generation and Detection
12. Simulation of Linear Block and Cyclic Error Control coding

TOTAL: 45 PERIODS

COURSE OUTCOMES :

At the end of the laboratory course, the student will be able to understand the:

1. Design AM, FM & Digital Modulators for specific
2. Compute the sampling frequency for digital modulation.
3. Simulate & validate the various functional modules of Communication
4. Demonstrate their knowledge in base band signaling schemes through implementation of digital modulation
5. Apply various channel coding schemes & demonstrate their capabilities towards the improvement of the noise performance of Communication

LAB REQUIREMENTS :

1. Trainer Kits for AM, FM, Signal Sampling, TDM, PCM, PAM, PPM,PWM, DM and Line Coding
2. Trainer Kits for ASK, FSK and PSK.
3. CRO/DSO (30 MHz) – 15
4. Signal Generators / Function Generators (3 MHz) – 15
5. MATLAB or equivalent opensource software package for simulation

• PCs – 15