Low Pass Filter

Low-pass dawn From Wikipedia(View original Wikipedia Article) Last modified on 14 declination 2011, at 03:34 A low-pass slabber is an electronic filter that passes low-frequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than the cutoff frequency. The real kernel of attenuation for each frequency varies from filter to filter. It is sometimes called a high-cut filter, or treble cut filter when use in audio applications. A low-pass filter is the opposite of a high-pass filter. A band-pass filter is a combination of a low-pass and a high-pass. Low-pass filters dwell in many different forms, including electronic circuits ( much(prenominal) as a hiss filter used in audio), anti-aliasing filters for instruct signals foregoing to analog-to-digital conversion, digital filters for smoothing sets of data, acoustic obstacles, blurring of images, and so on. The moving modal(a) mathematical process used in fields such as pay is a partic ular kind of low-pass filter, and gutter be canvass with the same signal processing techniques as are used for other low-pass filters. Low-pass filters provide a smoother form of a signal, removing the short-term fluctuations, and leaving the capaciouser-term trend. An optical filter could correctly be called low-pass, but conventionally is described as longpass (low frequency is long wavelength), to avoid confusion.

Table of Contents 1Examples of low-pass filters 1.1Acoustic 1.2Electronic 2Ideal and upstanding filters 3Continuous-time low-pass filters 3.1Laplace notation 4Electronic low-pass filters 4.1Passive electronic fruition 4.2 busy electronic realiz ation 5Discrete-time realization 5.1Algor! ithmic implementation 6See also 7References 8External links Examples of low-pass filters Acoustic A stiff physical barrier tends to reflect higher wholesome frequencies, and so acts as a low-pass filter for transmitting sound. When melody is playing in other room, the...If you want to get a full essay, order it on our website: OrderEssay.net

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