constant-duration pulse

См. также в других словарях:

• pulse time modulation — noun : modulation of the time intervals between successive pulses of constant duration and amplitude in accordance with a signal; specifically : a system of multiplex high frequency transmission using this method of modulation …   Useful english dictionary

• 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 Frequency Modulation — (PFM) is a modulation method for representing an analog signal using only digital levels (1 and 0). It is analogous to pulse width modulation (PWM), to which the reader may refer for more detailed information, as the magnitude of an analog signal …   Wikipedia

• pulse — pulse1 [puls] n. [ME pous < OFr < L pulsus ( venarum), beating (of the veins) < pulsus, pp. of pellere, to beat: see FELT1] 1. the regular beating in the arteries, caused by the contractions of the heart 2. any beat, signal, vibration,… …   English World dictionary

• Pulse — The rhythmic dilation of an artery resulting from beating of the heart. It is often measured by feeling the arteries of the wrist. * * * Rhythmic dilation of an artery, produced by the increased volume of blood thrown into the vessel by the… …   Medical dictionary

• pulse — I. noun Etymology: Middle English puls, probably from Anglo French puuiz gruel, from Latin pult , puls, probably from Greek poltos Date: 13th century the edible seeds of various crops (as peas, beans, or lentils) of the legume family; also a… …   New Collegiate Dictionary

• 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

• Bandwidth-limited pulse — A bandwidth limited pulse (also known as Fourier transform limited pulse, or more commonly, transform limited pulse) is a pulse of a wave that has the minimum possible duration for a given spectral bandwidth. Optical pulses of this type can be… …   Wikipedia

• Shock collar — The term shock collar is used to describe an electronic training aid developed to deliver an electrical signal through contact points attached to a dog collar. While similar systems are available for other animals, the most common are the collars …   Wikipedia

• Neurostimulation — Intervention OPS 301 code: 8 631 Neurostimulation involves modulation of the nervous system and electrically activate neurons in the body. The activation of neural elements in a part of the nervous system can be effectively facilitated by… …   Wikipedia

• Delta-sigma modulation — Delta sigma (ΔΣ; or sigma delta, ΣΔ) modulation is a method for encoding high resolution or analog signals into lower resolution digital signals. The conversion is done using error feedback, where the difference between the two signals is… …   Wikipedia