In signal processing, specifically control theory, BIBO stability is a form of stability for linear signals and systems that take inputs. BIBO stands for Bounded-Input Bounded-Output. If a system is BIBO stable, then the output will be bounded for every input to the system that is bounded.
A signal is bounded if there is a finite value such that the signal magnitude never exceeds, that is
- for discrete-time signals, or
- for continuous-time signals.
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“Chastity is the cement of civilization and progress. Without it there is no stability in society, and without it one cannot attain the Science of Life.”
—Mary Baker Eddy (1821–1910)