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February 25, 2010

EC1207 – PRINCIPLES OF COMMUNICATION ENGINEERING

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ANNA UNIVERSITY TIRUCHIRAPPALLI
Tiruchirappalli - 620 024 Regulations 2007
Syllabus B.TECH. INFORMATION TECHNOLOGY SEMSETER III
EC1207 – PRINCIPLES OF COMMUNICATION ENGINEERING


UNIT I AMPLITUDE MODULATION 9
Principles of Amplitude Modulation – AM Envelope – Frequency Spectrum and Bandwidth –
Modulation Index and Percent Modulation – AM Power Distribution – AM Modulator Circuits – Low
Level AM Modulator – Medium Power AM Modulator – AM Transmitters – Low Level Transmitters –
High Level Transmitters – Receiver Parameters – AM Reception AM Receivers – TRF – Super
Heterodyne Receivers – Double Conversion AM Receivers.


UNIT II ANGLE MODULATION 9
Angle Modulation – FM and PM Waveforms – Phase Deviation and Modulation Index – Frequency
Deviation – Phase and Frequency Modulators and Demodulators – Frequency Spectrum of Angle
Modulated Waves – Bandwidth Requirement – Broadcast Band FM – Average Power FM and PM
Modulators – Direct FM and PM – Direct FM Transmitters – Indirect Transmitters – Angle Modulation
Vs. Amplitude Modulation – FM Receivers FM Demodulators – PLL FM Demodulators – FM Noise
Suppression – Frequency Vs. Phase Modulation.


UNIT III DIGITAL MODULATION 9
Introduction – Binary PSK – DPSK – Differentially Encoded PSK – QPSK – M-ary PSK – QASK –
Binary FSK – MSK – GMSK – Duobinary Encoding – Performance Comparison of Various Systems
of Digital Modulation.


UNIT IV BASEBAND DATA TRANSMISSION 9
Sampling Theorem – Quadrature Sampling of Bandpass Signals – Reconstruction of Message from its
Samples – Signal Distortion in Sampling – Discrete PAM Signals – Power Spectra of Discrete PAM
Signals – ISI Nyquist Criterion for Distortionless Baseband Binary Transmission – Eye Pattern –
Baseband M-ary PAM Systems – Adaptive Equalization for Data Transmission.


UNIT V SPREAD SPECTRUM AND MULTIPLE ACCESS TECHNIQUES 9
Introduction – Pseudo-Noise Sequence – DS Spread Spectrum with Coherent Binary PSK – Processing
Gain – FH Spread Spectrum – Multiple Access Techniques – Wireless Communications – TDMA and
CDMA – Wireless Communication Systems – Source Coding of Speech for Wireless Communications.


L: 45 T: 15 Total: 60
TEXT BOOKS
1. Wayne Tomasi, “Electronic Communication Systems: Fundamentals Through Advanced”,
Pearson Education, 2001.
2. Simon Haykin, “Digital Communications”, John Wiley and Sons, 2003.
REFERENCES
1. Simon Haykin, “Communication Systems”, Fourth Edition, John Wiley and Sons,2001.
2. Taub and Schilling, “Principles of Communication Systems”, Second Edition, TMH, 2003.
3. Martin S.Roden, “Analog and Digital Communication System”, Third Edition, PHI, 2002.
4. Blake, “Electronic Communication Systems”, Second Edition, Thomson Delman, 2002.


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