quadrature signal
31Phase-shift keying — Le Phase shift keying (ou PSK, soit « modulation par déplacement de phase ») désigne une famille de formes de modulations numériques qui ont toutes pour principe de véhiculer de l information binaire via la phase d un signal de… …
32Phase shift keying — Traduction terminée Phase shift keying → …
33QPSK — Phase shift keying Traduction terminée Phase shift keying → …
34Quad phase shift keying — Phase shift keying Traduction terminée Phase shift keying → …
35Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e …
36Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …
37Detector (radio) — Passband modulation v · d · e Analog modulation AM · …
38Power dividers and directional couplers — A 10 dB 1.7–2.2 GHz directional coupler. From left to right: input, coupled, isolated (terminated with a load), and transmitted port …
39Single-sideband modulation — (SSB) is a refinement of amplitude modulation that more efficiently uses electrical power and bandwidth. It is closely related to vestigial sideband modulation (VSB) (see below).Amplitude modulation produces a modulated output signal that has… …
40Polar modulation — is analogous to quadrature modulation in the same way that polar coordinates are analogous to Cartesian coordinates. Quadrature modulation makes use of Cartesian coordinates, x and y . When considering quadrature modulation, the x axis is called… …
