This Communication Systems textbook by J.S. Katre is a key resource for Semester IV Electronics and Communication Engineering students at Maharshi Dayanand University (MDU). It covers foundational principles of signal transmission, including analog and digital modulation techniques essential for the university’s revised curriculum.

📡 Core Topics Covered

• Analog Modulation: Detailed analysis of Amplitude Modulation (AM), Frequency Modulation (FM), and Phase Modulation (PM), including their practical applications.

• Digital Communication: Introduction to Pulse Code Modulation (PCM) and digital schemes like ASK, FSK, and PSK, which are fundamental to modern systems.

  • Noise Analysis: Study of different types of noise in communication systems and how they affect signal-to-noise ratios ($SNR$).

• System Components: Exploration of transmitters, receivers, and the mathematical models used for signal processing and transmission.