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What (who) is cyclical amplitude - definition

IN AMPLITUDE MODULATION, THE AMPLITUDE (SIGNAL STRENGTH) OF THE CARRIER WAVE IS VARIED IN PROPORTION TO THE WAVEFORM BEING TRANSMITTED

Amplitude Modulation; Amplitude modulated; Double-sideband reduced carrier; Amplitude modulator; Amplitude-modulation detector; Amplitude-modulation radio; Amplitude-modulation; Amplitude Based; DSBAM; Clamp tube modulation; Heising modulation; Amplitude Modulated

Amplitude versus offset

TERM FOR REFERRING TO THE DEPENDENCY OF THE SEISMIC ATTRIBUTE, AMPLITUDE, WITH THE DISTANCE BETWEEN THE SOURCE AND RECEIVER

Amplitude Variation with Offset; Amplitude Versus Offset; Amplitude variation with offset

In geophysics and reflection seismology, amplitude versus offset (AVO) or amplitude variation with offset is the general term for referring to the dependency of the seismic attribute, amplitude, with the distance between the source and receiver (the offset). AVO analysis is a technique that geophysicists can execute on seismic data to determine a rock's fluid content, porosity, density or seismic velocity, shear wave information, fluid indicators (hydrocarbon indications).

https://en.wikipedia.org/wiki/Amplitude_versus_offset

Amplitude

PHYSICAL QUANTITY; (OF A PERIODIC VARIABLE) MEASURE OF ITS CHANGE OVER A SINGLE PERIOD (SUCH AS TIME OR SPATIAL PERIOD)

Pulse amplitude; Peak-to-peak; Amplitude (wave motion); Peak amplitude; Peak to peak; Peak value; Wave amplitude; Semi-amplitude; Amplitudes; RMS amplitude; Root mean square amplitude; Root mean square (RMS) amplitude; Root-mean-square amplitude; Amplitude (music); Peak-to-peak amplitude; True RMS voltmeter; Peak level; Peak–trough difference; Peak-trough difference; Peak-trough diff; Peak-trough diff.; Peak–trough diff.; Peak-trough differences; Peak-to-trough differences; Peak–trough differences

·noun Of extent of means or resources.

II. Amplitude ·noun Of extent of capacity or intellectual powers.

III. Amplitude ·noun Largeness, in a figurative sense; breadth; abundance; fullness.

IV. Amplitude ·noun State of being ample; extent of surface or space; largeness of dimensions; size.

V. Amplitude ·noun The horizontal line which measures the distance to which a projectile is thrown; the range.

VI. Amplitude ·noun An angle upon which the value of some function depends;

- a term used more especially in connection with elliptic functions.

VII. Amplitude ·noun The arc of the horizon between the true east or west point and the foot of the vertical circle passing through any star or object.

VIII. Amplitude ·noun The extent of a movement measured from the starting point or position of equilibrium;

- applied especially to vibratory movements.

IX. Amplitude ·noun The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.

amplitude

PHYSICAL QUANTITY; (OF A PERIODIC VARIABLE) MEASURE OF ITS CHANGE OVER A SINGLE PERIOD (SUCH AS TIME OR SPATIAL PERIOD)

Pulse amplitude; Peak-to-peak; Amplitude (wave motion); Peak amplitude; Peak to peak; Peak value; Wave amplitude; Semi-amplitude; Amplitudes; RMS amplitude; Root mean square amplitude; Root mean square (RMS) amplitude; Root-mean-square amplitude; Amplitude (music); Peak-to-peak amplitude; True RMS voltmeter; Peak level; Peak–trough difference; Peak-trough difference; Peak-trough diff; Peak-trough diff.; Peak–trough diff.; Peak-trough differences; Peak-to-trough differences; Peak–trough differences

n.

1.

Bulk, size, bulkiness, largeness, bigness, greatness, volume, capaciousness, width, breadth, extent, spaciousness, roominess, dimensions, mass.

2.

Range, reach, sweep, compass, extent, scope, swing.

3.

(Astron.) Angular distance (from the east or the west point), angular easting or westing.

Wikipedia

Amplitude modulation

Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to that of the message signal, such as an audio signal. This technique contrasts with angle modulation, in which either the frequency of the carrier wave is varied, as in frequency modulation, or its phase, as in phase modulation.

AM was the earliest modulation method used for transmitting audio in radio broadcasting. It was developed during the first quarter of the 20th century beginning with Roberto Landell de Moura and Reginald Fessenden's radiotelephone experiments in 1900. This original form of AM is sometimes called double-sideband amplitude modulation (DSBAM), because the standard method produces sidebands on either side of the carrier frequency. Single-sideband modulation uses bandpass filters to eliminate one of the sidebands and possibly the carrier signal, which improves the ratio of message power to total transmission power, reduces power handling requirements of line repeaters, and permits better bandwidth utilization of the transmission medium.

AM remains in use in many forms of communication in addition to AM broadcasting: shortwave radio, amateur radio, two-way radios, VHF aircraft radio, citizens band radio, and in computer modems in the form of QAM.

https://en.wikipedia.org/wiki/Amplitude modulation