in phase quadrature
51Modulation de phase — La modulation de phase ou MP ou PM est un mode de modulation consistant à transmettre un signal par la modulation de la phase d un signal porteur (porteuse). Cette modulation est non linéaire. Sommaire 1 Théorie 1.1 Cas d un signal sinusoïdal 1.2 …
52modulation par quadrature de phase — ketvirtinis fazės manipuliavimas statusas T sritis radioelektronika atitikmenys: angl. quadraphase shift keying vok. Quadraphasentastung, f rus. четверичная фазовая манипуляция, f pranc. modulation par quadrature de phase, f …
53Planetary phase — is the term used to describe the appearance of the illuminated section of a planet. Like lunar phases, the planetary phase depends on the relative position of the sun, the planet and the observer.As seen from Earth, the inferior planets may… …
54Amplitude and phase-shift keying — or Asymmetric Phase shift keying, (APSK), is a digital modulation scheme that conveys data by changing, or modulating, both the amplitude and the phase of a reference signal (the carrier wave). In other words, it combines both Amplitude shift… …
55Grandeurs en quadrature — ● Grandeurs en quadrature grandeurs alternatives sinusoïdales de même fréquence, entre lesquelles existe une différence de phase d un quart de période …
56Carrierless amplitude phase modulation — (CAP) is a non standard variation of quadrature amplitude modulation (QAM). Instead of modulating the amplitude of two carrier waves, CAP generates QAM signal by combining two PAM signals filtered through two filters designed so that their… …
57Detector (radio) — Passband modulation v · d · e Analog modulation AM · …
58Circular polarization — The electric field vectors of a traveling circularly polarized electromagnetic wave. In electrodynamics, circular polarization[1] of an electromagnetic wave is a polarization in which the electric field of the passing wave does not change… …
59Antenna (radio) — Whip antenna on car …
60telecommunication — [tel΄ə kə myo͞o΄ni kā′shən] n. [also pl., with sing. or pl. v.] communication by electronic or electric means, as through radio, telephone, telegraph, television, or computers * * * tel·e·com·mu·ni·ca·tion (tĕlʹĭ kə myo͞o nĭ kāʹshən) n. 1. The… …
