December 2011
Intermediate to advanced
436 pages
18h 7m
English
book
Real-Time Digital Signal Processing from MATLAB® to C with the TMS320C6x DSPs, Second Edition, 2nd Edition
by Thad B. Welch, Cameron H.G. Wright, Michael G. Morrow
Content preview from Real-Time Digital Signal Processing from MATLAB® to C with the TMS320C6x DSPs, Second Edition, 2nd Edition
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Chapter 13
Project 4: AM Transmitters
13.1 Theory
O
NE of the simplest modulation schemes is amplitude modulation, which is normally
just abbreviated as AM. The commercial AM broadcast radio stations in the United
States use a version of AM called double sideband large carrier (DSB-LC), sometimes also
called double sideband with carrier (DSB-WC). See [61, 76] for some general theoretical
background on amplitude modulated signals, and [77,78] for more DSP-specific background
on AM communications.
For several decades now, commercial AM radio broadcasts can be received on almost
any consumer radio sold in the United States. Most U.S. commercial AM radio
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