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You're looking for a reliable resource on communication systems, specifically analog and digital communication systems by Sanjay Sharma. Here's what I found:
Communication systems play a vital role in modern society, enabling the transmission of information from one point to another. The two primary types of communication systems are analog and digital. Sanjay Sharma's book, "Communication Systems: Analog and Digital", provides an in-depth analysis of both types of systems. This essay will discuss the key concepts and differences between analog and digital communication systems, as outlined in Sharma's book. communication systems analog and digital sanjay sharma pdf
Below is a comprehensive guide, looking at everything from the author's qualifications to the book's structure and where you might find its PDF.
Introduction to communication entropy and error detection/correction. This public link is valid for 7 days
Excellent for understanding the derivation and implementation of formulas.
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The textbook is divided into two primary parts, covering the full spectrum of electronic communication technologies: Part 1: Analog Communication Introductory Concepts
| Part and Section | Focus and Key Topics | | :--- | :--- | | | | | Section I: Introductory Concepts | Building a foundation with introductions to systems, signal analysis, and transmission. Covers fundamentals necessary to understand the rest of the book. | | Section II: Amplitude Modulation | Focuses on AM, including various types (DSB-FC, DSB-SC, SSB-SC, VSB). Explains generation, detection, and associated transmitters/receivers. | | Section III: Angle Modulation | Dedicates to FM and PM, detailing their theory, methods of generation and detection, and FM transmitters/receivers. | | Section IV: Random Signals and Noise Analysis | Introduces probability theory, random processes, and noise. Analyzes the performance of analog systems in the presence of noise. | | Section V: Radio Receivers and Transmitters | Concludes the analog section with a practical look at the hardware used in radio communication systems. | | PART 2: DIGITAL COMMUNICATION | | | Section VI: Sampling and Waveform Coding | Covers sampling theory, pulse modulation, and waveform coding techniques like PCM, DM, ADM, and DPCM. | | Section VII: Multiplexing and Digital Data Transmission | Explains multiplexing techniques, line coding, and pulse shaping for digital data. Discusses baseband transmission and its challenges. | | Section VIII: Performance Evaluation | Focuses on digital modulation techniques (ASK, FSK, PSK, QAM) and analyzes their performance, especially regarding noise immunity. | | Section IX: Information Theory and Coding | Discusses foundational concepts of information theory, channel capacity, and error control coding for reliable transmission. | | Section X: Emerging Techniques | Explores modern topics including Spread Spectrum Communications, Equalization, MIMO Techniques, and OFDM. | | Appendices & Index | Provides quick-reference material with essential formulae, transforms, and a comprehensive index. |
Modulation alters a high-frequency carrier wave to match the characteristics of a low-frequency message signal, allowing long-distance transmission.