|
|
|
|
|
|
|
|
|
Frequency-shift keying (fsk)
| Fiber Optic Glossary |
Frequency modulation in which the modulating signal shifts the output frequency between predetermined values. also called frequency-shift modulation, frequency-shift signaling.
|
|
Modulation, английский
- Изменение характеристик несущей в соответствии с информативным сигналом
- Модуляция
- The process, or results of the process, whereby some characteristic of one signal is varied in accordance with another signal. the modulated signal is called the carrier. the carrier may be modulated in three fundamental ways: by varying the amplitude, called amplitude modulation; by varying the frequency, called frequency modulation; by varying the phase, called phase modulation.
- The process by which some characteristic (i.e., amplitude, phase) of one rf wave is
- The process by which some characteristic (i.e., amplitude, phase) of one rf wave is varied in accordance with another wave (message signal).
- The coding of information onto a carrier frequency. may use amplitude, frequency, phase, or time, plus many forms of on/off digital coding
- The ability to superimpose an external signal on the output beam of the laser as a control.
- The process by which the characteristic of one wave (the carrier) modifies another wave (the signal). examples include amplitude modulation (am), frequency modulation (fm), and pulse-coded modulation (pcm).
- N модуляция modul|e
Modulating, английский
Predetermined, английский
|
Gbit/s, английский
Gigabits (billion bits ) per second
Axial propagation constant, английский
For an optical fiber, the propagation constant evaluated along the axis of a fiber in the direction of transmission.
|
|
|
|
|
|
|
