phase-shift signal
51Gaussian minimum-shift keying — La modulation spécifiée pour la norme GSM est la modulation GMSK (Gaussian Minimum Shift Keying ou modulation à déplacement minimum gaussien), qui est une modulation de fréquence à enveloppe constante, ce qui est plutôt intéressant lorsqu on… …
52Very minimum-shift keying — VMSK, for Very Minimum Shift Keying modulation, is one of several digital modulation methods claimed to send high speed digital data through very low bandwidth (or narrowband) channels. A typical claim is a data rate of 6 Mbit/s in a bandwidth of …
53BPSK — Phase shift keying Traduction terminée Phase shift keying → …
54DPSK — Phase shift keying Traduction terminée Phase shift keying → …
55QPSK — Phase shift keying Traduction terminée Phase shift keying → …
56Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e …
57radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …
58AZUSA — refers to a ground based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center. AZUSA dated back to the early 1950s and was named after the southern California town (Azusa, California) where the system was… …
59Quadrature amplitude modulation — (QAM) (Pronounced IPA|kwa:m) is a modulation scheme which conveys data by changing ( modulating ) the amplitude of two carrier waves. These two waves, usually sinusoids, are out of phase with each other by 90° and are thus called quadrature… …
60Matrix decoder — is an audio technology where a finite number of discrete audio channels (e.g., 2) are decoded into a larger number of channels on play back (e.g., 5). The channels are generally, but not always, arranged for transmission or recording by an… …
