differential signal processing
81Optical hybrid — A 90° optical hybrid is a six port device that is used for coherent signal demodulation for either homodyne or heterodyne detection. It would mix the incoming signal with the four quadratural states associated with the reference signal in the… …
82Linear filter — A linear filter applies a linear operator to a time varying input signal. Linear filters are very common in electronics and digital signal processing (see the article on electronic filters), but they can also be found in mechanical engineering… …
83Frequency mixer — This article is about non linear mixing operating in the frequency domain. For other types of mixers, see electronic mixer. Frequency Mixer Symbol. In electronics a mixer or frequency mixer is a nonlinear electrical circuit that creates new… …
84Bart Kosko — Infobox Writer imagesize = 300px name = Bart Kosko caption = pseudonym = birthname = birthdate = birth date |1960|02|07 birthplace = Kansas City, Kansas deathdate = deathplace = occupation = Writer and Professor of Electrical Engineering… …
85Bernard Marshall Gordon — (born in 1927), American inventor and philanthropist, is generally called Bernie rather than Mr. Gordon by associates and subordinates. [As of January, 2007, the book of Bernie s earthly life is still open. Consequently there are no scholarly… …
86Claude Shannon — Claude Elwood Shannon (1916 2001) Born April …
87History of mathematics — A proof from Euclid s Elements, widely considered the most influential textbook of all time.[1] …
88Hybrid computer — Hybrid computers are computers that comprise features of analog computers and digital computers. The digital component normally serves as the controller and provides logical operations, while the analog component normally serves as a solver of… …
89RTLS communications — Articleissues essay=July 2008 copyedit=May 2008 refimprove=August 2008RTLS communications is a special breed of wireless communicating with the aim to support locating wireless nodes not only topologically, but merely topographically outdoors or… …
90Data acquisition — is the process of sampling signals that measure real world physical conditions and converting the resulting samples into digital numeric values that can be manipulated by a computer. Data acquisition systems (abbreviated with the acronym DAS or… …
