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.

Read more about this topic:  Control Theory

Famous quotes containing the words people in, people, systems and/or control:

    Will the people in the cheaper seats clap your hands? All the rest of you, if you’ll just rattle your jewelry.
    John Lennon (1940–1980)

    No matter how corrupt and unjust a convict may be, he loves fairness more than anything else. If the people placed over him are unfair, from year to year he lapses into an embittered state characterized by an extreme lack of faith.
    Anton Pavlovich Chekhov (1860–1904)

    Our little systems have their day;
    They have their day and cease to be:
    They are but broken lights of thee,
    And thou, O Lord, art more than they.
    Alfred Tennyson (1809–1892)

    The poets were not alone in sanctioning myths, for long before the poets the states and the lawmakers had sanctioned them as a useful expedient.... They needed to control the people by superstitious fears, and these cannot be aroused without myths and marvels.
    Strabo (c. 58 B.C.–c. 24 A.D., Greek geographer. Geographia, bk. 1, sct. 2, subsct. 8.