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Look up
observer in Wiktionary, the free dictionary.
An observer is one who engages in
observation or in watching an experiment.
Observer may also refer to:
Computer science and information theory
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
Military
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
Publications
Science
Other uses
See also
Topics referred to by the same term