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optical spectrum frequency communications

См. также в других словарях:

  • Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …   Wikipedia

  • Optical coherence tomography — Intervention Optical Coherence Tomography (OCT) image of a sarcoma MeSH …   Wikipedia

  • Frequency-division multiplexing — (FDM) is a form of signal multiplexing where multiple baseband signals are modulated on different frequency carrier waves and added together to create a composite signal. Non telephoneFDM can also be used to combine multiple signals before final… …   Wikipedia

  • Communications Act of 1934 — The Communications Act of 1934 is a United States federal law, enacted as Public Law Number 416, Act of June 19, 1934, ch. 652, 48 Stat. 1064, by the 73rd Congress, signed by President Franklin D. Roosevelt, codified as Chapter 5 of Title 47 of… …   Wikipedia

  • Optical amplifier — An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from… …   Wikipedia

  • Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) …   Wikipedia

  • Spectrum analyzer — A spectrum analyzer Spectrum analyzer display A spectrum analyzer measures the magnitude of an input signal versus frequency with …   Wikipedia

  • Communications media in Romania — Part of a series on the Culture of Romania Topics …   Wikipedia

  • IEEE Communications Society — Type Professional Organization Founded 1952 Origins Formation of IRE’s (the Institute of Radio Engineers) Professio …   Wikipedia

  • Spread spectrum — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Electromagnetic spectrum — The electromagnetic (EM) spectrum is the range of all possible electromagnetic radiation frequencies. [cite web|url=http://imagine.gsfc.nasa.gov/docs/dict ei.html#em spectrum|title=Imagine the Universe! Dictionary] The electromagnetic spectrum… …   Wikipedia

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