filter bank
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Filter bank — A filter bank is an array of band pass filters that separates the input signal into several components, each one carrying a single frequency subband of the original signal. It also is desirable to design the filter bank in such a way that… … Wikipedia
Bank filtration — is a type of filtration that works by passing water to be purified for use as drinking water through the banks of a river or lake. It is then drawn off by extraction wells some distance away from the water body. The process may directly yield… … Wikipedia
Polyphase quadrature filter — A polyphase quadrature filter, or PQF, is a filter bank which splits an input signal into a given number N (mostly a power of 2) of equidistant sub bands. These sub bands are subsampled by a factor of N, so they are critically sampled.This… … Wikipedia
Quadrature mirror filter — In digital signal processing, a quadrature mirror filter is a filter most commonly used to implement a filter bank that splits an input signal into two bands. The resulting high pass and low pass signals are often decimated by a factor of 2,… … Wikipedia
Gabor filter — A Gabor filter is a linear filter whose impulse response is defined by a harmonic function multiplied by a Gaussian function. Because of the multiplication convolution property (Convolution theorem), the Fourier transform of a Gabor filter s… … Wikipedia
Gammatone filter — A gammatone filter is an impulse response filter used in many models of the auditory system. It is the most widely used example of auditory filters. It is described by the equation:g(t) = at^{n 1}cos(2pi ft + phi) e^{ 2pi bt}, ,wheref is the… … Wikipedia
Slow sand filter — Slow sand filters are used in water purification for treating raw water to produce a potable product. They are typically 1 to 2 metres deep, can be rectangular or cylindrical in cross section and are used primarily to treat surface water. The… … Wikipedia
Diesel particulate filter — A diesel particulate filter (top left) in a Peugeot Off road DPF Installa … Wikipedia
Al Taqwa Bank — The Al Taqwa Bank (occasionally Bank al Taqwa or simply Al TaqwaNewsweek. (2001). [http://www.msnbc.msn.com/id/3067473/site/newsweek/from/RL.5/ Attacking the Money Machine ] . MSNBC.com . Retrieved February 14, 2007.] ) is a financial institution … Wikipedia
Dogger Bank itch — is a cutaneous condition characterized by an eczematous dermatitis caused by exposure to the sea chervil, Alcyonidium diaphanum, a seaweed like animal colony.[1]:431 The disease, common in fishermen who work in the North Sea, has been recognized… … Wikipedia
