Norbert Wiener the amount of noise present in a signal by comparison with an estimate of the desired noiseless signal. Wiener developed the filter at the Radiation Laboratory at MIT to predict the position of German bombers from radar reflections. It is necessary to predict the future, because by the time the shell reaches the vicinity of the target, the target has moved, and maybe has changed direction slightly. They even modeled the muscle response of the pilot, which led eventually to cybernetics. The unmanned V1's were particularly easy to model, and on a good day, American guns fitted with Wiener filters
Norbert Wiener Center for Harmonic Analysis and Applications Norbert Wiener Center for Harmonic Analysis and Applications The Norbert Wiener Center for Harmonic Analysis and Applications (NWC) is a division of the Mathematics Department in the University of Maryland College of Computer, Mathematical, and Natural Sciences devoted to research and education in pure and applied harmonic analysis. The center, named after acclaimed scientist Norbert Wiener was founded in 2004 and is based out of the Mathematics Building on the University of Maryland, College Park campus. It is supported by the University of Maryland, the National Science Foundation, and local industries with which it interacts. Currently, the Norbert Wiener Center