- pulse-frequency modulator
- частотно-импульсный модулятор
Большой англо-русский и русско-английский словарь. 2001.
pulse-frequency modulator
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Pulse-density modulation — Pulse density modulation, or PDM, is a form of modulation used to represent an analog signal in the digital domain. In a PDM signal, specific amplitude values are not encoded into pulses as they would be in PCM. Instead it is the relative density … Wikipedia
Pulse-width modulation — (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. PrinciplePulse width modulation uses a square wave whose pulse… … Wikipedia
Pulse Code Modulation — Die Puls Code Modulation ist ein Verfahren, um ein analoges Signal in ein digitales Signal bzw. Binärcode umzusetzen. Es wird für Audio und Video Signale verwendet. Die Umsetzung erfolgt in folgenden Schritten: Abtastung des analogen Signals… … Deutsch Wikipedia
Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… … Wikipedia
Frequency mixer — This article is about non linear mixing operating in the frequency domain. For other types of mixers, see electronic mixer. Frequency Mixer Symbol. In electronics a mixer or frequency mixer is a nonlinear electrical circuit that creates new… … Wikipedia
pulse modulator — noun A device for the pulse modulation of a radio frequency carrier signal … Wiktionary
Femtosecond pulse shaping — In optics, Femtosecond pulse shaping refers to various techniques to modify the temporal profile of an ultrashort pulse from a laser. Pulse shaping can be used to shorten/elongate the duration of optical pulse, or to generate more complex… … Wikipedia
Ultrashort pulse — In optics, an ultrashort pulse of light is an electromagnetic pulse whose time duration is on the order of the femtosecond (10 − 15 second). Such pulses have a broadband optical spectrum, and can be created by mode locked oscillators. They are… … Wikipedia
Gaussian frequency-shift keying — (GFSK) is a type of Frequency Shift Keying modulation that utilizes a Gaussian filter to smooth positive/negative frequency deviations, which represent a binary 1 or 0. It is used by DECT, Bluetooth [Sweeney, D. An introduction to bluetooth a… … Wikipedia
Acousto-optic modulator — An acousto optic modulator (AOM), also called a Bragg cell, uses the acousto optic effect to diffract and shift the frequency of light using sound waves (usually at radio frequency). They are used in lasers for Q switching, telecommunications for … Wikipedia
Power Modulator — A power modulator is an electronic device that stores energy over a long period of time, but releases this energy over a short period of time. Power modulators are a special class of pulsed power devices that provide high peak power electrical… … Wikipedia
