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Modulation Techniques

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ALSO CALLED: Digital Modulation Techniques
DEFINITION: Modulation is the addition of information (or the signal) to an electronic or optical signal carrier. Modulation can be applied to direct current (mainly by turning it on and off), to alternating current, and to optical signals. One can think of blanket waving as a form of modulation used in smoke signal transmission (the carrier being a steady stream of smoke). Morse code, invented for telegraphy  … 
Definition continues below.
Modulation Techniques White Papers (View All Report Types)
2 Matches
Reliability Analysis of the APC Symmetra MW Power System
sponsored by Schneider Electric
WHITE PAPER: The study included an exhaustive analysis of the APC Symmetra MW system's architecture, component selection, control system, manufacturing practice, and response to internal and external faults. The study also included a detailed review of APC's delta conversion online topology.
Posted: 28 Jan 2010 | Published: 28 Jan 2010

Schneider Electric

Standardization and Modularity in Data Center Physical Infrastructure
sponsored by Schneider Electric
WHITE PAPER: This paper examines how failure to adopt modular standardization as a design strategy for data center physical infrastructure (DCPI) is costly on all fronts, unnecessary expense, avoidable downtime, and lost business opportunity. Standardization and modularity, create wide-ranging benefits in DCPI that streamline and simplify every process.
Posted: 26 Jan 2011 | Published: 26 Jan 2011

Schneider Electric
2 Matches
 
MODULATION TECHNIQUES DEFINITION (continued): …  and still used in amateur radio, uses a binary (two-state) digital code similar to the code used bymodern computers. For most of radio and telecommunication today, the carrier is alternating current (AC) in a given range of frequencies. Common modulation methods include:Amplitude modulation (AM), in which the voltage applied to the carrier is varied over timeFrequency modulation (FM), in which the frequency of the carrier waveform is varied in small but meaningful amountsPhase modulation (PM), in which the natural flow of the alternating current waveform is delayed temporarily These are … 
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