Introduction to Digital Communications

  • Electronics & Communication Engineering-cairo |
  • English

Description

Sampling theory and its practical aspects. PAM, Time division multiplexing, TDM-PAM, PWM, and PPM generation and detection. Cross talk and channel bandwidth requirements, PCM generation and detection. Quantization noise, A-law, -law compressors. Delta modulation generation and detection. ADM, DPCM, Probability of error in transmission, Matched filter and autocorrelators . Power spectral density of some famous formats.

Program

B.Sc. Electronics and communication Engineering

Objectives

  • Students will be familiar with a different pass-band digital modulation systems taking the effect of noise into consideration.Students will identify the probability of error, bit error rate, spectral properties.Students will design and realize the transmitter and receiver of a specific digital communication system.rn

Textbook

Data will be available soon!

Course Content

content serial Description
1Introduction to Pass band Modulation Techniques, Tx and Rx system, Signal Space (SS) techniques. Orthogonal bases s. Geometric representation of signals.
2Distance, Correlation, Orthogonality. Relation to Matched filter theory. Gram-Schmidt orthogonalization procedure.
3Decision rules, Decision boundaries, Decision regions. MAP and ML estimation. Bank of matched filters receivers.
4Probability of error calculations in presence of AWGN. Basic Bandpass modulation techniques, ASK, BPSK, and BFSK. SS representation. Time and frequency expressions Coherent detection of ASK, OOK, BPSK, BFSK signals in presence of noise.rn
5BPSK, BFSK generation and detectionrnPower Spectral Density (PSD) and Spectral efficiencies for ASK, BPSk, BFSK.rn
6QPSK: SS-PSD-Spectral Effiency, Generation of QPSK. OQPSK and π/4 QPSK.
7Optimum FSK, MSK: Analysis, relation to OQPSK, generation, detection. GMSK.
8M-ary Modulation Techniques: M-ary ASK, M-ary PSK.
9Union Bound. Error performance of M-ary modulation.
10Non-Coherent Detection. Rayleigh and Rice distributions.
11Optimum NC detection. NC Matched filter.rnComparison of digital modulation techniques.rn
12M-ary Modulation Techniques: M-ary FSK, QAM.
13NC-FSK – DPSK generation, detection and Error performance.
14Revision
15Revision
16Final Exam

Markets and Career

  • Generation, transmission, distribution and utilization of electrical power for public and private sectors to secure both continuous and emergency demands.
  • Electrical power feeding for civil and military marine and aviation utilities.
  • Electrical works in construction engineering.
Courses
  • Degree Bachelor
  • Code: EC422
  • Credit hrs: 3
  • Prequisites: EC421M
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