Transcription of Basic Concepts of modulation - Berk
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Basic Concepts of modulation - Berk
All About modulation Part I Copyright 2002 Charan Langton 1 Intuitive Guide to Principles of Communications All About modulation - Part I Basic Concepts , Signal Space, Constellations and Phase Shift Keying modulations (PSK, QPSK, OQPSK, M-PSK, /4-QPSK, MSK, and GMSK) Basic Concepts of modulation Three kinds of modulations modulation is the process of facilitating the transfer of information over a medium. Voice can not be sent be very far by screaming. To extend the range of sound, we need to transmit it through a medium other than air, such as a phone line or radio. The process of converting information (voice in this case) so that it can be successfully sent through a medium (wire or radio waves) is called modulat ion. We begin our discussion of digital modulation by starting with the three Basic types of digital modulation techniques.
All About Modulation ΠPart I Copyright 2002 Charan Langton www.complextoreal.com 7 The tip of the signal vector is called the constellation point.
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