- optimal amplitude and phase modulation
- Engineering: OAPM
Универсальный русско-английский словарь. Академик.ру. 2011.
Универсальный русско-английский словарь. Академик.ру. 2011.
Continuous phase modulation — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Quadrature 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… … Wikipedia
Modulation (Technik) — Die Modulation (von lat. modulatio = Takt, Rhythmus) beschreibt in der Nachrichtentechnik einen Vorgang, bei dem ein zu übertragendes Nutzsignal (beispielsweise Musik, Sprache, Daten) eine sogenannte Trägerwelle verändert (moduliert). Dadurch… … Deutsch Wikipedia
Comparison of analog and digital recording — This article compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded using either digital or analog techniques. An analog… … Wikipedia
Symbol rate — In digital communications, symbol rate (also known as baud or modulation rate) is the number of symbol changes (waveform changes or signalling events) made to the transmission medium per second using a digitally modulated signal or a line code.… … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Holography — (from the Greek, ὅλος hólos whole + γραφή grafē writing, drawing) is a technique that allows the light scattered from an object to be recorded and later reconstructed so that it appears as if the object is in the same position relative to the… … Wikipedia
Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios … Wikipedia
Line code — An example of coding a binary signal using rectangular pulse amplitude modulation with polar non return to zero code … Wikipedia
Analog sound vs. digital sound — Analog sound versus digital sound compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded in either digital or analog… … Wikipedia
Radar — For other uses, see Radar (disambiguation). A long range radar antenna, known as ALTAIR, used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on Kwajalein Atoll … Wikipedia