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• Sinc_filter abstract "In signal processing, a sinc filter is an idealized filter that removes all frequency components above a given cutoff frequency, without affecting lower frequencies, and has linear phase response. The filter's impulse response is a sinc function in the time domain, and its frequency response is a rectangular function.It is an "ideal" low-pass filter in the frequency sense, perfectly passing low frequencies, perfectly cutting high frequencies; and thus may be considered to be a brick-wall filter.Real-time filters can only approximate this ideal, since an ideal sinc filter (aka rectangular filter) is non-causal and has an infinite delay, but it is commonly found in conceptual demonstrations or proofs, such as the sampling theorem and the Whittaker–Shannon interpolation formula.In mathematical terms, the desired frequency response is the rectangular function:where is an arbitrary cutoff frequency (aka bandwidth). The impulse response of such a filter is given by the inverse Fourier transform of the frequency response: the normalized sinc function.As the sinc filter has infinite impulse response in both positive and negative time directions, it must be approximated for real-world (non-abstract) applications; a windowed sinc filter is often used instead. Windowing and truncating a sinc filter kernel in order to use it on any practical real world data set destroys its ideal properties.".
• Sinc_filter thumbnail Sinc_function_(normalized).svg?width=300.
• Sinc_filter wikiPageExternalLink brick-wall-digital-filters-and-phase-deviations.
• Sinc_filter wikiPageExternalLink t--BrickwallFilter.
• Sinc_filter wikiPageID "267637".
• Sinc_filter wikiPageRevisionID "571293798".
• Sinc_filter hasPhotoCollection Sinc_filter.
• Sinc_filter subject Category:Digital_signal_processing.
• Sinc_filter subject Category:Filter_frequency_response.
• Sinc_filter subject Category:Filter_theory.
• Sinc_filter subject Category:Signal_processing.
• Sinc_filter comment "In signal processing, a sinc filter is an idealized filter that removes all frequency components above a given cutoff frequency, without affecting lower frequencies, and has linear phase response.".
• Sinc_filter label "Filtro Sinc".
• Sinc_filter label "Idealer Tiefpass".
• Sinc_filter label "Sinc filter".
• Sinc_filter label "Sinc-фильтр".
• Sinc_filter label "Sinc滤波器".
• Sinc_filter sameAs Idealer_Tiefpass.
• Sinc_filter sameAs Filtro_Sinc.
• Sinc_filter sameAs m.01nkzb.
• Sinc_filter sameAs Q1509050.
• Sinc_filter sameAs Q1509050.
• Sinc_filter wasDerivedFrom Sinc_filter?oldid=571293798.
• Sinc_filter depiction Sinc_function_(normalized).svg.
• Sinc_filter isPrimaryTopicOf Sinc_filter.