pulse amplitude modulation
41pulse modulation — n. 1. the formation of an intermittent carrier wave by the generation and transmission of a sequence of short, periodic pulses: used in radar 2. the modulation of the amplitude, a characteristic, etc. of a sequence of pulses in order to convey… …
42pulse modulation — n. 1. the formation of an intermittent carrier wave by the generation and transmission of a sequence of short, periodic pulses: used in radar 2. the modulation of the amplitude, a characteristic, etc. of a sequence of pulses in order to convey… …
43Pulse shaping — In digital telecommunication, pulse shaping is the process of changing the waveform of transmitted pulses. Its purpose is to make the transmitted signal suit better to the communication channel by limiting the effective bandwidth of the… …
44Pulse — 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… …
45pulse modulation — Transmission of information by modulation of a pulsed or intermittent carrier. Pulse width, count, position, phase, and/or amplitude can be the varied characteristic …
46Delta-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… …
47Delta modulation — Principle of the delta PWM. The output signal (blue) is compared with the limits (green). These limits correspond to the reference signal (red), offset by a given value. Every time the output signal reaches one of the limits, the PWM signal… …
48Video modulation — In Amplitude Modulated (AM) broadcast analogue television systems it is possible to modulate the video signal two ways. Peak White Positive Peak white can be made to correspond to peak transmitter power (100 IRE) and the synchronisation (sync)… …
49Femtosecond 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… …
50PAM — pulse amplitude modulation …
