People in Systems and Control
Many active and historical figures made significant contribution to control theory, including, for example:
- Pierre-Simon Laplace (1749-1827) invented the z-transform used to solve discrete-time control theory problems.
- Alexander Lyapunov (1857–1918) in the 1890s marks the beginning of stability theory.
- Harold S. Black (1898–1983), invented the concept of negative feedback amplifiers in 1927. He managed to develop stable negative feedback amplifiers in the 1930s.
- Harry Nyquist (1889–1976), developed the Nyquist stability criterion for feedback systems in the 1930s.
- Richard Bellman (1920–1984), developed dynamic programming since the 1940s.
- Andrey Kolmogorov (1903–1987) co-developed the Wiener–Kolmogorov filter (1941).
- Norbert Wiener (1894–1964) co-developed the Wiener–Kolmogorov filter and coined the term cybernetics in the 1940s.
- John R. Ragazzini (1912–1988) introduced digital control and the z-transform in the 1950s.
- Lev Pontryagin (1908–1988) introduced the maximum principle and the bang-bang principle.
Read more about this topic: Control Theory
Famous quotes containing the words people, systems and/or control:
“A long time ago people often said, Why did you become a teacher? Well, that was about the only decent thing when I was growing up for a girl to be. If you became a secretary ... you got a hard name.”
—Knowles Witcher Teel (b. c. 1906)
“I am beginning to suspect all elaborate and special systems of education. They seem to me to be built up on the supposition that every child is a kind of idiot who must be taught to think.”
—Anne Sullivan (18661936)
“Surrealism, n. Pure psychic automatism, by which it is intended to express, whether verbally or in writing, or in any other way, the real process of thought. Thoughts dictation, free from any control by the reason, independent of any aesthetic or moral preoccupation.”
—André Breton (18961966)