Control Theory - People in Systems and Control

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.

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