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You are here: Home en Syllabuses (2020) Faculty of Engineering Electrical and Electronic Engineering・Informatics and Mathematical Science Modulation Theory in Electrical Communication

Modulation Theory in Electrical Communication


Numbering Code
  • U-ENG26 36032 LJ72
Term 2020/First semester
Number of Credits 2 credits
Course Type Lecture
Target Student Undergraduate
Language Japanese
Day/Period Wed.1
  • Graduate School of Informatics, Professor MORIKURA MASAHIRO
  • Graduate School of Informatics, Associate Professor MURATA HIDEKAZU
Outline and Purpose of the Course This course discusses all types of modulation methods, that is, the theories of amplitude, frequency, phase, pulse modulations, as well as the principles of modulation/demodulation. Further focus is made on signal processing basics, sampling theory, etc., including of related applications.
Course Goals Students will gain an understanding of the fundamentals of communication theory, used in mobile telephones, wireless local area networks (LAN), optical fiber communications, etc. Specifically, students will master signal expression and signal processing (modulation/demodulation) within time axis and frequency axis of communication signals, chiefly in the physical layers of communication signals.
Schedule and Contents "Signal processing (4-5 classes)
Clarification is made of the concept of “frequency,” and students learn of tools for handling frequency, namely, Fourier series and Fourier transforms and their practical applications. Discussion is next made especially of the basics of random signals and theories regarding the standardization and quantization of random signals.

Analog modulation and demodulation methods (5-6 classes)
Discussion is made of the principles of amplitude modulation and angle modulation and their generation and modulation methods, with comparison of their respective characteristics, including occupied bandwidth and signal-to-noise ratio, etc.

Digital modulation and demodulation methods (4-5 classes)
After description of various methods of pulse modulation, there is discussion of principles and methods of digital modulation types, including modulation phase shift keying (PSK), etc., plus the basics of signal space. Confirmation is made of the extent of student understanding, with supplementary discussion to further improve levels of understanding.

Confirmation of extent of student learning (1 class)
Confirmation is made of the extent that students have learned the contents of this course. Additional explanation is provided for those students whose understanding remains incomplete or imperfect.
Grading Policy Evaluation is made of extent of student's understanding of course contents via written examination.
Prerequisites Students are required to have taken the course Industrial Mathematics (Fourier Analysis) and Electronic Circuits.
Preparation and Review Students are required to have taken the course Industrial Mathematics (Fourier Analysis) and Electronic Circuits.
  • 通信方式, 守倉他, (オーム社), ISBN:9784274214738
  • 寺田他: 情報通信工学 (オーム社) isbn{}{4274129322}
Courses Delivered by Instructors with Practical Work Experience
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    A course with practical content delivered by instructors with practical work experience