Standards  >   Data Transmission Standards  >  

Modulation Techniques

RSS Feed    Add to Google    Add to My Yahoo!
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 Multimedia (View All Report Types)
1 Match
Advanced GPS Techniques
sponsored by BlackBerry
VIDEO: Watch this tutorial video, presented by Brian Zubert of the developer relations team at Research in Motion, as he covers advanced GPS. Topics included are: GPS on GSM, GPS on iDEN, GPS on CDMA, best practices, GPS in the browser and integrating with BlackBerry maps.
Posted: 14 Jun 2010 | Premiered: 11 Jun 2010

1 Match
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 … 
Modulation Techniques definition sponsored by, powered by an online computer dictionary

About TechTarget:

TechTarget provides enterprise IT professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective IT purchase decisions and managing their organizations' IT projects - with its network of technology-specific Web sites, events and magazines

All Rights Reserved, Copyright 2000 - 2017, TechTarget | Read our Privacy Statement