How transmission channels impact signal behavior and cause distortion. 2. Analog Communication Systems
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Detailed explanation of Frequency Modulation (FM) and Phase Modulation (PM).
Detailed analysis of superheterodyne receivers, selectivity, fidelity, and image frequency rejection. How transmission channels impact signal behavior and cause
The sampling theorem, Pulse Amplitude Modulation (PAM), Pulse Width Modulation (PWM), and Pulse Position Modulation (PPM) are covered thoroughly. B. Pulse Code Modulation (PCM)
Probability, random processes, and the performance analysis of analog systems in the presence of noise.
Do not just read through the derivations for Signal-to-Noise Ratio (SNR) or probability of error ( Pecap P sub e ). Derive them on paper to build intuition. Pulse Modulation (PCM
Every communication system, regardless of whether it is analog or digital, consists of three primary blocks:
Sharma’s book excels by first building a strong foundation in the concepts of analog systems (signal analysis, modulation, and noise) before transitioning into the advanced principles of digital systems (sampling, digital modulation, and error control).
| | Analog Communication Systems | Digital Communication Systems | | --- | --- | --- | | | Continuous signals | Discrete signals | | Accuracy | Susceptible to degradation and distortion | More resistant to degradation and distortion | | Bandwidth | Limited bandwidth | Higher bandwidth capacity | | Security | Less secure | More secure | | Applications | Radio broadcasting, telephone systems, television broadcasting | Mobile communications, internet communications, satellite communications | Digital Baseband Transmission
The book’s clarity makes it a student favorite, bridging the gap between mathematical theory and practical application.
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Before diving into entertainment, let’s establish why Sanjay Sharma’s book is legendary. The text systematically breaks down two parallel universes:
Includes Sampling Theory , Pulse Modulation (PCM, DM), Digital Baseband Transmission, Digital Modulation Techniques (ASK, FSK, PSK), Information Theory, and Error Control Coding. Accessing the Book
: Focuses on the transition from analog to digital via sampling theory and techniques like Pulse Code Modulation (PCM), Delta Modulation (DM), and DPCM. Digital Modulation