Lecture Notes
Rajalakshmi Engineering College, Thandalam Prepared by Ms. S.Sheena Christabel, Lecturer/ECE EC2311-COMMUNICATION ENGINEERING III YEAR EEE A
Introduction to Communication Engineering
Communication Engineering Course Work introduces different methods of analog communication and their significance. Digital Communication methods for high bit rate transmission are explained. It involves the concepts of source and line coding techniques for enhancing rating of transmission of minimizing the errors in transmission and finally various media for digital communication are illustrated. Communication systems provide for electronic exchange of multimedia data such as Voice, data, video, music, email, web pages, etc. The common communication systems are Radio and TV broadcasting, Public Switched Telephone Network (voice, fax, modem), Cellular Phones, Computer networks (LANs, WANs, and the Internet), Satellite systems (pagers, voice/data, movie broadcasts), Bluetooth. Communication is the production and exchange of information and meaning by use of signs and symbols. It involves encoding and sending messages, receiving and decoding them, and synthesizing information and meaning. Communication permeates all levels of human experience and it is central to understanding human behavior and to nearly all public health efforts aimed at fostering health behavior change among individuals, populations, organizations, communities, and societies.
1
UNIT I
ANALOG COMMUNICATION
Analog Communication is a data transmitting technique in a format that utilizes continuous signals to transmit data including voice, image, video, electrons etc. An analog signal is a variable signal continuous in both time and amplitude which is generally carried by use of modulation. Analog circuits do not involve quantisation of information unlike the digital circuits and consequently have a primary disadvantage of random variation and signal degradation, particularly resulting in adding noise to
Introduction to Communication Engineering
Communication Engineering Course Work introduces different methods of analog communication and their significance. Digital Communication methods for high bit rate transmission are explained. It involves the concepts of source and line coding techniques for enhancing rating of transmission of minimizing the errors in transmission and finally various media for digital communication are illustrated. Communication systems provide for electronic exchange of multimedia data such as Voice, data, video, music, email, web pages, etc. The common communication systems are Radio and TV broadcasting, Public Switched Telephone Network (voice, fax, modem), Cellular Phones, Computer networks (LANs, WANs, and the Internet), Satellite systems (pagers, voice/data, movie broadcasts), Bluetooth. Communication is the production and exchange of information and meaning by use of signs and symbols. It involves encoding and sending messages, receiving and decoding them, and synthesizing information and meaning. Communication permeates all levels of human experience and it is central to understanding human behavior and to nearly all public health efforts aimed at fostering health behavior change among individuals, populations, organizations, communities, and societies.
1
UNIT I
ANALOG COMMUNICATION
Analog Communication is a data transmitting technique in a format that utilizes continuous signals to transmit data including voice, image, video, electrons etc. An analog signal is a variable signal continuous in both time and amplitude which is generally carried by use of modulation. Analog circuits do not involve quantisation of information unlike the digital circuits and consequently have a primary disadvantage of random variation and signal degradation, particularly resulting in adding noise to