Man in Control

As we promise to you that we’ll back sooner with update content,here it is: Man In Control engineering. The reason why we concerned with this article is the truth that nowadays student doenst recognize it’s principal,I mean someone like lyapunov,laplace,and kalman. We just use their invention,without knowing who they are,pretty sad,huh? Haha,so here it goes

1. Pierre-Simon Laplace 1749 - 1827
I know what you may thing,yeah he is THAT laplace transform guy,the one who make us suffer,the one who make us didn’t sleep for weeks,the one who we cry because of signal and system aka ISIS ^^
Aside from that,Laplace transform guy or should I call him by his name: Pierre-Simon Laplace is quite nice French, living the same era as Napoleon Bonaparte. Known for -well you name it- Laplace transform which can transform time domain into frequency domain and vice versa. His contribution toward control engineering is priceless, simplify complex calculation into simple calculation,making control engineer’s task easier.
A mathematician who firmly believed the world was entirely deterministic. Like a man with a hammer to whom everything was a nail, to Laplace the universe was nothing but a giant problem in calculus. Laplace is good? Yeah definitely not for us !!


2. Rudolph E. Kalman
Seriously,I didn’t know this man,except its Kalman filter that is used in praktikum ISIS ^^. Here is what I find from wiki:
Rudolf (Rudy) Emil Kalman, born on May 19, 1930, in Budapest, Hungary, is a Hungarian-American electrical engineer, mathematical system theorist, and college professor, who was educated in the United States, and has done most of his work there. He is currently a retired professor from three different institutes of technology and universities. He is most noted for his co-invention and development of the Kalman filter, a complicated mathematical formulation that is widely used in control systems, avionics, and outer space manned and unmanned vehicles. For this work,.
Another genious guy born in the right time,that is Rudolph E. Kalman. Graduated from MIT and Columbia university is enough to make us drooling ^^. We know this man from praktikum isis,yeah THAT kalman filter. Kalman filter is a mathematical technique widely used in the digital computers of control systems, navigation systems, avionics, and outer-space vehicles to extract a signal from a long sequence of noisy and/or incomplete technical measurements, usually those done by electronic and gyroscopic systems.
Kalman's ideas on filtering were initially met with vast skepticism, so much so that he was forced to do the first publication of his results in mechanical engineering, rather than in electrical engineering or systems engineering. Kalman had more success in presenting his ideas, however, while visiting Stanley F. Schmidt at the NASA Ames Research Center in 1960. This led to the use of Kalman filters during the Apollo program, and furthermore, in the NASA Space Shuttle, in Navy submarines, and in unmanned aerospace vehicles and weapons, such as cruise missiles.
To appreciate his contribution in control automation engineering U.S. President Barack Obama awarded Kalman with the National Medal of Science on October 7th, 2009

3.Aliaksndr Lyapunov
Hahaha,I know what you think,is it real? Yeah, his moustache are real^^
Well back to topic here is what I can get from wiki ( im sorry for CTRL C+V on wiki for aliaksandr lyapunov’s. I dunno anything about this man) :
Aleksandr Mikhailovich Lyapunov (Russian: Александр Михайлович Ляпунов; June 6 [O.S. May 25] 1857 – November 3, 1918) was a Russian mathematician, mechanician and physicist. His surname is sometimes romanized as Ljapunov, Liapunov or Ljapunow.
Lyapunov is known for his development of the stability theory of a dynamical system, as well as for his many contributions to mathematical physics and probability theory.
Lyapunov contributed to several fields, including differential equations, potential theory, dynamical systems and probability theory. His main preoccupations were the stability of equilibria and the motion of mechanical systems, the model theory for the stability of uniform turbulent liquid, and the study of particles under the influence of gravity. His work in the field of mathematical physics regarded the boundary value problem of the equation of Laplace. In the theory of potential, his work from 1897 On some questions connected with Dirichlet's problem clarified several important aspects of the theory. His work in this field is in close connection with the work of Steklov. Lyapunov developed many important approximation methods. His methods, which he developed in 1899, make it possible to define the stability of sets of ordinary differential equations. He created the modern theory of the stability of a dynamic system. In the theory of probability, he generalised the works of Chebyshev and Markov, and proved the Central Limit Theorem under more general conditions than his predecessors. The method he used for the proof found later widespread use in probability theory

Like many mathematicians, Lyapunov preferred to work alone and communicated mainly with few colleagues and close relatives. He usually worked late, four to five hours at night, sometimes the whole night. Once or twice a year he visited the theatre, or went to some concert. He had many students. He was an honorary member of many universities, an honorary member of the Academy in Rome and a corresponding member of the Academy of Sciences in Paris

I don’t know whether this article is an interesting or not,but for sure,knowing founding father (until now,I can’t get who is founding mother :D) is a common policy and working knowledge for control engineer!!

Ps: anyone noticed this blog’s name? LEER-BEHEER? Just go check it out in your african’s dictionary and you will find what that weird words mean ^^


Contributed by : Rian Fatah M,34458
Reference : wikipedia.org