Observer

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

An observer is one who engages in observation or in watching an experiment.

Observer may also refer to:

Computer science and information theory[edit]

  • In information theory, any system which receives information from an object
  • State observer in control theory, a system that models a real system in order to provide an estimate of its internal state
  • Observer pattern, a design pattern used in computer programming

Fiction[edit]

Military[edit]

  • Air observer, an aircrew member
  • Artillery observer, a front line personnel who directs fire discipline for artillery strikes
  • Royal Observer Corps, a civil defence organisation, originally tasked with reporting enemy aircraft
  • Observer, a non-participating officer, or umpire, tasked with observing the actions of soldiers during a field training or military exercise

Music[edit]

Publications[edit]

Science[edit]

Other uses[edit]

See also[edit]