High Quality Content by WIKIPEDIA articles! Rudolf 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. The Kalman Filter is almost always implemented using electronic digital computers; thus, it is method that is associated with electronics engineering. For this work, Kalman was awarded by U.S. President Barack Obama with the National Medal of Sciences on 7 October 2009.