Analog Communication By V Chandrasekhar Pdf [ HIGH-QUALITY ]
Introduction
4. How to Use This Book Effectively
For University Exams:
- Start with Definitions: The author provides clear definitions at the start of every chapter. Memorize these.
- Follow the Derivations: Do not skip the steps. In exams, marks are awarded for steps (methodology), not just the final formula.
- Solve the "Worked Examples": Exam questions are often modeled directly after the solved examples in the book.
- Standard AM: Derivation of the time-domain expression, modulation index, and transmission efficiency. The author explains why the carrier eats up 66% of power but carries no information.
- DSB-SC (Double Sideband Suppressed Carrier): Introduction to balanced modulators and the coherent detector.
- SSB (Single Sideband): Generation using the phase shift method and filter method.
- VSB (Vestigial Sideband): Application in television broadcasting.
Unit 3: Angle Modulation (FM & PM)
- Topics: Frequency Modulation vs. Phase Modulation, Narrowband FM (NBFM), Wideband FM (WBFM), noise in FM, and capture effect.
- Key Focus: Study the mathematical derivation of the FM wave and the concept of bandwidth (Carson’s Rule). V. Chandrasekhar explains the relationship between FM and PM very clearly here.
The book "Analog Communication" by V. Chandrasekhar provides a comprehensive introduction to the fundamental concepts and techniques used in analog communication systems. The book is suitable for undergraduate and postgraduate students, as well as practicing engineers who want to learn about analog communication systems.
Key Features of the Book
Transition to Digital: While primarily focused on analog, it provides an introductory bridge to digital communication, covering basics like FSK, PSK, and QAM.