INDEPENDENT SIDEBAND

Communications Systems Glossary

Communications Systems — Modulation — Amplitude modulation — Independent sideband

 

 

 

 

 

 

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Information on Independent sideband (ISB)

The number of single-sideband (SSB) channels that can be transmitted over a given communication system is determined by the minimum frequency separation of the channels. Channels can be spaced closer together, and hence further bandwidth economy can be achieved by the use of independent-sideband (ISB), in which two input channels each modulate the same carrier frequency to produce two double-sideband (DSB) waveforms. Two band-pass filters are used to select the upper sideband and the lower sideband in the other. The selected sidebands are combined to produce a DSB signal in which each sideband carries different information.


Other topics in our resources on Communications Systems related to Independent sideband include: 
 
  • Amplitude modulation (AM)
  • frequency modulation (FM)
  • phase modulation (PM)
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  • single sideband (SSB)
  • independent sideband (ISB)
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  • upper sideband (USB)
  • lower sideband (LSB)
  • Double sideband (DSB)

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