Academic Domain: Analog & Digital Communication Systems
The Voice
The Architecture of Information Across Distance
The Journey of the Message
The Signal understands information mathematically. The Voice transports it. How does information leave one system, travel across a chaotic, noisy medium, and arrive at another system intact? This is the science of modulation, encoding, multiplexing, and overcoming distance.
INFORMATION →
MODULATION →
TRANSMISSION →
CHANNEL →
NOISE →
RECEPTION →
DEMODULATION →
RECOVERY
SAMPLING →
QUANTIZATION →
ENCODING →
DIGITAL TRANSMISSION →
DETECTION
The 15 Communication Realms
Analog & Digital Communication Architecture
REALM 01
The Communication Universe
TX
RX
- Information, Source & Destination
- Transmitter & Receiver Models
- Baseband vs Passband
- Wired & Wireless Channels
Noise & Probability
- Random Variables & PDF (Teacher Track)
- Thermal, Shot & Flicker Noise
- Signal-to-Noise Ratio (SNR)
- Figure of Merit (Teacher Track)
Amplitude Modulation (AM)
- Need for Modulation & AM Basics
- Modulation Index & Power
- DSB-FC, DSB-SC, SSB, VSB
- AM Generation & Detection
Angle Modulation (FM/PM)
- Frequency Modulation (FM)
- Phase Modulation (PM)
- Carson's Rule & Bandwidth
- Generation & Detection Methods
Analog Receivers
- Tuned Radio Receiver (TRF)
- Superheterodyne Principle
- Image Frequency Rejection
- Sensitivity & Selectivity
Sampling & PCM
- Nyquist Rate & Aliasing
- Pulse Code Modulation (PCM)
- Delta Modulation (DM) & Slope Overload
- Adaptive Delta Modulation (ADM)
Digital Modulation I
- Amplitude Shift Keying (ASK/OOK)
- Frequency Shift Keying (FSK)
- Coherent vs Non-Coherent Detection
- Bandwidth Requirements
Digital Modulation II
- Phase Shift Keying (BPSK/QPSK)
- Differential PSK (DPSK)
- Quadrature Amplitude Mod (QAM)
- Constellation Diagrams
Receivers & Detection
- Decision Devices & Thresholds
- Matched Filter Concept
- Inter-Symbol Interference (ISI)
- Eye Diagram Analysis
Multiplexing
- Need for Multiplexing
- Frequency Division (FDM)
- Time Division (TDM)
- Synchronous vs Statistical TDM
Source Coding
- Data Compression Basics
- Redundancy & Entropy
- Lossless Coding
- Huffman Coding Concepts
Channel Coding
- Error Detection & Correction
- Parity & Hamming Distance
- Linear Block Codes
- Forward Error Correction (FEC)
Baseband & Line Coding
- Baseband Pulse Transmission
- NRZ, RZ, Manchester Coding
- DC Component & Synchronization
- Pulse Shaping (Nyquist Criterion)
Information Theory
- Information Measure & Entropy
- Noisy Channel Capacity
- Shannon-Hartley Theorem
- Bandwidth vs SNR Trade-offs
15 — The Communication Laboratory
[1] AM/FM GENERATION [2] SUPERHET ANALYSIS [3] PCM QUANTIZATION [4] CONSTELLATION PLOTS [5] EYE DIAGRAMS [6] BER MEASUREMENT
The physical verification of communication theory. Utilizing oscilloscopes and spectrum analyzers to observe modulation, detect noise, and measure the integrity of transmitted data across a medium.