noun

• 1Physics Telecommunications
  The misidentification of a signal frequency, introducing distortion or error.

  ‘high-frequency sounds are prone to aliasing’

  More example sentences

  • ‘Analog signals are usually low-pass filtered to remove most or all of the components above the Nyquist frequency in order to avoid aliasing.’
  • ‘Optical signals were low-pass filtered at 500 Hz to prevent aliasing.’
  • ‘Any component of a sampled signal with a frequency above this limit is subject to aliasing.’
  • ‘Aliasing refers to an effect that causes different continuous signals to become indistinguishable (or aliases of one another) when sampled.’
  • ‘This type of signal distortion is called aliasing.’

• 2Computing
  The use of aliases to designate files, commands, addresses, or other items.

  ‘As mentioned earlier, the host machine assumes multiple IP addresses using IP aliasing.’

  More example sentences

  • ‘Members of the system pay £3 a month for free reception and transmission of internet mail, mail forwarding and mail aliasing.’
  • ‘Groff also allows for the aliasing of troff commands, macros and variables to provide alternative names for existing ones.’
  • ‘Although we had only four actual servers, we relied heavily on IP aliasing to create virtual personalities for each service.’
  • ‘It covers IP aliasing, packet filters, and ipchains.’

• 3Computing
  The distortion of a reproduced image so that curved or inclined lines appear inappropriately jagged, caused by the mapping of a number of points to the same pixel.

  ‘A rasterized image of the view from the light's position was rendered, and sampling errors occurred, including jagged edges and aliasing.’

  More example sentences

  • ‘The visual transfer is clear and colorful, but vertical lines still demonstrate some aliasing (they often look like stair steps).’
  • ‘Otherwise, the graphics are smooth and free of annoying graphical glitches like glaring aliasing or slowdown.’
  • ‘Other than some aliasing on the car models and in the distant backgrounds, Rallisport features amazing graphics that certainly add to the game's play experience.’
  • ‘As you can see, it looks pretty good, though aliasing is a bit more obvious.’