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O que (quem) é quadrature component - definição

MATHEMATICAL TECHNIQUE FOR MANIPULATING SIGNALS ETC.

I-Q signal; IQ signal; I and Q; Quadrature component; I and Q components; IQ data

$Graphic example of the formula  <math>{\color{Green}\cos(2\pi ft + \phi(t))}\ =</math><br><math>{\color{Blue}\cos(2\pi ft)\cos(\phi(t))}\ +\ {\color{Red}\cos(2\pi ft + \pi/2)\sin(\phi(t))}.</math><br> The phase modulation (φ(''t''), not shown) is a non-linearly increasing function from 0 to {{pi}}/2 over the interval 0 < t < 16. The two amplitude-modulated components are known as the in-phase component (I, thin blue, decreasing) and the quadrature component (Q, thin red, increasing).$

In-phase and quadrature components

In electrical engineering, a sinusoid with angle modulation can be decomposed into, or synthesized from, two amplitude-modulated sinusoids that are offset in phase by one-quarter cycle (90 degrees or /2 radians). All three functions have the same center frequency.

https://en.wikipedia.org/wiki/In-phase_and_quadrature_components

Electronic component

BASIC DISCRETE DEVICE OR PHYSICAL ENTITY IN AN ELECTRONIC SYSTEM USED TO AFFECT ELECTRONS OR THEIR ASSOCIATED FIELDS

Discrete device; Electrical component; Discrete component; Electrical components; Discreet components; Electronic components; Electronic Components; Discrete components; Electonic components; Photoelectric devices; Discrete-device

An electronic component is any basic discrete device or physical entity in an electronic system used to affect electrons or their associated fields. Electronic components are mostly industrial products, available in a singular form and are not to be confused with electrical elements, which are conceptual abstractions representing idealized electronic components and elements.

https://en.wikipedia.org/wiki/Electronic_component

component architecture

BRANCH OF SOFTWARE ENGINEERING

Software componentry; Component-oriented programming; Software components; Reusable software component; Reusable Software Components; Reusable software components; Reusable Software Component; Component (software); Component Software; Software component; Component software; Application components; Component based programming; Component-based development; Component-based; Component-based software development; Component-based programming; Component model; Component architecture; Component-based design; Components-based development

<programming> A notion in object-oriented programming where "components" of a program are completely generic. Instead of having a specialised set of methods and fields they have generic methods through which the component can advertise the functionality it supports to the system into which it is loaded. This enables completely dynamic loading of objects. JavaBeans is an example of a component architecture. See also design pattern. (1997-11-20)

Wikipédia

In-phase and quadrature components

A sinusoid with modulation can be decomposed into, or synthesized from, two amplitude-modulated sinusoids that are offset in phase by one-quarter cycle (90 degrees or π/2 radians). All three sinusoids have the same center frequency. The two amplitude-modulated sinusoids are known as the in-phase (I) and quadrature (Q) components, which describes their relationships with the amplitude- and phase-modulated carrier.

Or in other words, it is possible to create an arbitrarily phase-shifted sine wave, by mixing together two sine waves that are 90° out of phase in different proportions.

The implication is that the modulations in some signal can be treated separately from the carrier wave of the signal. This has extensive use in many radio and signal processing applications. I/Q data is used to represent the modulations of some carrier, independent of that carrier's frequency.

https://en.wikipedia.org/wiki/In-phase and quadrature components