Analog and Digital
Communication
Semester IV – Computer Engineering
(Mumbai University)
J. S. Katre
M.E. (Electronics and Telecommunication)
Formerly, Assistant Professor
Department of Electronics Engineering
Vishwakarma Institute of Technology (V.I.T.), Pune.
Maharashtra, India
Analog and Digital Communication
(Semester IV - Computer Engineering, Mumbai University)
J. S. Katre
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First Printed in India
: January 2009
Second Revised Edition : January 2010
Third Revised Edition : January 2011
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Syllabus…
1.
Introduction :
Basics of communication systems, modulation and demodulation, analog and digital modulation,
noise in communication system, various noise parameters.
(Refer Chapters 1 and 2)
2.
Analog Modulation and Demodulation :
Different types of analog modulation, amplitude modulators and demodulators, frequency
modulators and demodulators, phase modulation and demodulation, amplitude modulation and
frequency modulation receivers.
(Refer Chapter 3)
3.
Pulse Analog Modulation :
Sampling theorem for low-pass and band-pass filters, sampling technique principle, generation,
demodulation and spectrum, types of pulse analog modulation, generation and detection of pulse
amplitude modulation (PAM). pulse width modulation (PWM) and pulse position modulation
(PPM), principles of time division multiplexing (TDM) and frequency division multiplexing
(FDM).
(Refer Chapters 4 and 5)
4.
Digital Modulation Techniques :
Discrete messages, concept of information, average information, information rate, Shannon’s
theorem, channel capacity, capacity of Gaussian channel, pulse code modulation (PCM), delta
modulation (DM), adaptive delta modulation (ADM) - transmission systems.
(Refer Chapters 6 and 7)
5.
Base Band Modulation :
PCM waveform types, M-ary pulse modulation, base band signal receiver, detection of binary
signals in Gaussian noise, intersymbol interference (ISI) and equalization.
(Refer Chapter 8)
6.
Bandpass Modulation and Demodulation :
Types of bandpass modulation, phase shift keying - BPSK, DPSK, DEPSK, QPSK,
M - ary PSK, amplitude shifting - BASK, QAM, frequency shift keying – BFSK, M-ary, FSK.
(Refer Chapter 9)
7.
Channel Coding :
Types of error control, linear block codes, errors detection and correction capacity, cyclic codes,
convolution codes.
(Refer Chapter 10)

Preface
My dear students,
I am extremely happy to present this book of “Analog and
Digital Communication” for you. I have divided the subject into
small chapters so that the topics can be arranged and understood
properly. The topics within the chapters have been arranged in a
proper sequence to ensure smooth flow of the subject.
A large number of solved examples have been included.
So, I am sure that this book will cater all your needs for this
subject.
I am thankful to Shri. Pradeep Lunawat and Shri. Sachin
Shah for the encouragement and support that they have extended.
I am also thankful to the staff members of Tech-Max & Katre
Publications and others for their efforts to make this book as good
as it is. I have jointly made every possible efforts to eliminate all
the errors in this book. However if you find any, please let us
know, because that will help me to improve further.
I am also thankful to my family members and friends for
patience and encouragement.
- J. S. Katre
