frequency-agile filter - определение. Что такое frequency-agile filter
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Что (кто) такое frequency-agile filter - определение

ELECTRONIC CIRCUIT THAT REMOVES UNWANTED COMPONENTS FROM THE SIGNAL, OR ENHANCES WANTED ONES, OR BOTH
Electronic filters; Filter (circuits); Pi filter; Pi Filter; Frequency filter; BAW filter
  • A low-pass electronic filter realised by an [[RC circuit]]
  • Constant k filter response with 5 elements
  • center
  • High-pass T filter
  • Low-pass π filter
  • RL filter frequency response
  • Zobel network (constant R) filter, 5 sections
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Electronic filter         
Electronic filters are a type of signal processing filter in the form of electrical circuits. This article covers those filters consisting of lumped electronic components, as opposed to distributed-element filters.
Agile software development         
  • right
  • XP]].
  • url=http://www.vtt.fi/inf/pdf/publications/2002/P478.pdf}}</ref>
GROUP OF ITERATIVE AND INCREMENTAL DEVELOPMENT METHODS THAT ENCOURAGE FLEXIBLE RESPONSES TO CHANGES AND ADVOCATE ADAPTIVE PLANNING, EVOLUTIONARY DEVELOPMENT, EARLY DELIVERY, AND CONTINUAL IMPROVEMENT
Agile process; Agile Processes; Agile processes; Agile Methods; Agile methods, when to use; Agile programming; Agile methods; Agile Software Development; Agile Programming; Agile Software Manifesto; Adaptation of Agile Methods; Manifesto for Agile Software Development; Agile development; Post-Agilism; Agile Manifesto; Fragilism; Agile web development; Applied Agile Software Development; Agile Web Development; Agile coaching; Agile software; Agile Alliance; Sync Kanban; Agile project management; Information radiator; Radiator (information); Agile method; Agile framework; Rapid iteration; Agile Software Project; Agile software project; Agile software projects; Agile Software Projects; History of agile software development; Agile methodology
In software development, agile (sometimes written Agile) practices include requirements discovery and solutions improvement through the collaborative effort of self-organizing and cross-functional teams with their customer(s)/end user(s), adaptive planning, evolutionary development, early delivery, continual improvement, and flexible responses to changes in requirements, capacity, and understanding of the problems to be solved.
Frequency agility         
Frequency-agile; Frequency agile
Frequency agility is the ability of a radar system to quickly shift its operating frequency to account for atmospheric effects, jamming, mutual interference with friendly sources, or to make it more difficult to locate the radar broadcaster through radio direction finding. The term can also be applied to other fields, including lasers or traditional radio transceivers using frequency-division multiplexing, but it remains most closely associated with the radar field and these other roles generally use the more generic term "frequency hopping".
Photographic filter         
  • The 80A filter, mainly used to correct for the excessive redness of [[tungsten]] lighting, can also be used to oversaturate scenes that already have blue. The photo on the left was shot with a polarizer, while the one on the right was shot with a polarizer and an 80A filter.
  • Effects of using a polarizer and a red filter in black-and-white photography
  • An extreme case: a Nikon D700 with a smashed filter which may have saved the Nikkor lens beneath. Usually, all that can reasonably be expected is protection from scratches, nicks and airborne contaminants.
  • Polarizing filter, Atlantic Ocean 1989
  • The ''LOMO effect'' imitates photos made with a low-cost Russian camera brand, named "LOMO". It is approximated by saturated central colors, blurred periphery, and darkened corners and edges ([[vignetting]]).}} effect.
CAMERA ACCESSORY CONSISTING OF AN OPTICAL FILTER
Daylight filter; Filter (photography); Lens filter; Filter ring; Filter mount; Filter thread; Cross screen filter; Photographic filters; Red Black and White filter; Camera filter; Series filter
In photography and cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path. The filter can be of a square or oblong shape and mounted in a holder accessory, or, more commonly, a glass or plastic disk in a metal or plastic ring frame, which can be screwed into the front of or clipped onto the camera lens.
Agile management         
Agile Project Management
Agile management is the application of the principles of Agile software development and Lean Management to various management processes, particularly product development and project management. Following the appearance of the Manifesto for Agile Software Development in 2001, Agile techniques started to spread into other areas of activity.
Elliptic filter         
  • The frequency response of a fourth-order elliptic low-pass filter with '''ε'''&nbsp;=&nbsp;0.5 and '''ξ'''&nbsp;=&nbsp;1.05. Also shown are the minimum gain in the passband and the maximum gain in the stopband, and the transition region between normalized frequency 1 and '''ξ'''
  • A closeup of the transition region of the above plot.
  • Log of the absolute value of the gain of an 8th order elliptic filter in [[complex frequency space]] (s = σ + jω) with ε = 0.5, ξ = 1.05 and ω<sub>0</sub> = 1. The white spots are poles and the black spots are zeroes. There are a total of 16 poles and 8 double zeroes. What appears to be a single pole and zero near the transition region is actually four poles and two double zeroes as shown in the expanded view below. In this image, black corresponds to a gain of 0.0001 or less and white corresponds to a gain of 10 or more.
  • An expanded view in the transition region of the above image, resolving the four poles and two double zeroes.
  • upright=3.6
SIGNAL PROCESSING FILTER
Cauer filter; Elliptical filter; Equiripple filter; Eliptic filter
An elliptic filter (also known as a Cauer filter, named after Wilhelm Cauer, or as a Zolotarev filter, after Yegor Zolotarev) is a signal processing filter with equalized ripple (equiripple) behavior in both the passband and the stopband. The amount of ripple in each band is independently adjustable, and no other filter of equal order can have a faster transition in gain between the passband and the stopband, for the given values of ripple (whether the ripple is equalized or not).
Optical filter         
  • Coloured and [[neutral-density filter]]s
DEVICE THAT SELECTIVELY TRANSMITS LIGHT OF CERTAIN WAVELENGTHS
Optic filter; Wedge filter; Glass filter; Optical Filters; Optical band-pass filter; Optical bandpass filter; Filter (optics); Light filter
An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the optical path, which are either dyed in the bulk or have interference coatings. The optical properties of filters are completely described by their frequency response, which specifies how the magnitude and phase of each frequency component of an incoming signal is modified by the filter.
Air filter         
DEVICE COMPOSED OF FIBROUS MATERIALS WHICH REMOVES SOLID PARTICULATES FROM THE AIR
Filter (air); Air cleaner; Air filtration; Air filters; Universal air filter; Cabin air filter; Dust filter; Air Filters
A particulate air filter is a device composed of fibrous, or porous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. Filters containing an adsorbent or catalyst such as charcoal (carbon) may also remove odors and gaseous pollutants such as volatile organic compounds or ozone.
air filter         
DEVICE COMPOSED OF FIBROUS MATERIALS WHICH REMOVES SOLID PARTICULATES FROM THE AIR
Filter (air); Air cleaner; Air filtration; Air filters; Universal air filter; Cabin air filter; Dust filter; Air Filters
¦ noun a device for filtering particles from the air passing into an internal-combustion engine.
Frequencies         
  • Diagram of the relationship between the different types of frequency and other wave properties.
  • Complete spectrum of [[electromagnetic radiation]] with the visible portion highlighted
  • Modern frequency counter
  • Hz]]
  • The [[sound wave]] spectrum, with rough guide of some applications
NUMBER OF OCCURRENCES OR CYCLES PER TIME
Wave period; Frequencies; Period (physics); Frequency (wave motion); Frequency dependence; Oscillation frequency; Frekvens; Periodic time; Frequency measurement; Period (frequency); Temporal frequency; Repetition frequency; Occurrence frequency; Event frequency; Oscillation rate; Repetition rate; Occurrence rate; Event rate; Rate of occurrence; Rate of repetition; Rate of oscillation; Wave frequency; Ordinary frequency; Aperiodic frequency
·pl of Frequency.

Википедия

Electronic filter

Electronic filters are a type of signal processing filter in the form of electrical circuits. This article covers those filters consisting of lumped electronic components, as opposed to distributed-element filters. That is, using components and interconnections that, in analysis, can be considered to exist at a single point. These components can be in discrete packages or part of an integrated circuit.

Electronic filters remove unwanted frequency components from the applied signal, enhance wanted ones, or both. They can be:

  • passive or active
  • analog or digital
  • high-pass, low-pass, band-pass, band-stop (band-rejection; notch), or all-pass.
  • discrete-time (sampled) or continuous-time
  • linear or non-linear
  • infinite impulse response (IIR type) or finite impulse response (FIR type)

The most common types of electronic filters are linear filters, regardless of other aspects of their design. See the article on linear filters for details on their design and analysis.