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long-term filter

См. также в других словарях:

  • Filter (optics) — Coloured and Neutral Density filters Optical filters are devices which selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the mass or have… …   Wikipedia

  • Filter (mathematics) — The powerset algebra of the set {1,2,3,4} with the upset colored green. The green elements make a principal ultrafilter on the lattice. In mathematics, a filter is a special subset of a partially ordered set. A frequently used special case is the …   Wikipedia

  • Low-pass filter — A low pass filter is a filter that passes low frequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than the cutoff frequency. The actual amount of attenuation for each frequency varies from filter to filter …   Wikipedia

  • Hodrick-Prescott filter — The Hodrick Prescott filter is a mathematical tool used in macroeconomics, especially in real business cycle theory. It is used to obtain a smoothed non linear representation of a time series, one that is more sensitive to long term than to short …   Wikipedia

  • Hodrick-Prescott (HP) Filter — A data smoothing technique that is commonly applied to remove short term fluctuations that are associated with the business cycle, thereby revealing long term trends. The HP filter is used to determine the long term trend of a time series by… …   Investment dictionary

  • Trickling filter — A trickling filter consists of a fixed bed of rocks, gravel, slag, polyurethane foam, sphagnum peat moss, or plastic media over which sewage or other wastewater flows downward and causes a layer or film of microbial slime to grow, covering the… …   Wikipedia

  • Distributed element filter — Figure 1. A circuit featuring many of the f …   Wikipedia

  • Kalman filter — Roles of the variables in the Kalman filter. (Larger image here) In statistics, the Kalman filter is a mathematical method named after Rudolf E. Kálmán. Its purpose is to use measurements observed over time, containing noise (random variations)… …   Wikipedia

  • Photographic filter — Four photographic filters. Clockwise, from top left, an infrared hot mirror filter, a polarising filter, and a UV filter. The larger filter is a polariser for Cokin style filter mounts. In photography and videography, a filter is a camera… …   Wikipedia

  • Electronic filter topology — An elementary filter topology introduces a capacitor into the feedback path of an op amp to achieve an unbalanced active implementation of a low pass transfer function Electronic filter topology defines electronic filter circuits without taking… …   Wikipedia

  • Air filter — An air filter is a device which removes solid particulates such as dust, pollen, mold, and bacteria from air. Air filters are used in applications where air quality is important, notably in building ventilation systems and in engines, such as… …   Wikipedia

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