amplitude modulation

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Related to Amplitude modulator: Phase modulator, Modulation index

amplitude modulation

Altering the height (amplitude) of an electrical or acoustical wave.
See: A-mode ultrasound
References in periodicals archive ?
Figure 5 shows the measured constellation of the balanced biphase amplitude modulator at 30 GHz for bias points between +1 and -2 V.
Sources of error requiring amplitude-response variation in the device include detector delay variation with power level, incidental phase modulation in the amplitude modulator and RF source phase noise.
A 360 [degrees] phase shifted and amplitude modulator that can be trimmed easily to a superior accuracy with a procedure requiring amplitude measurements have been presented.
Cisco will provide CableLabs with the core IP infrastructure for the all-IP solutions testing at the facility, including routing equipment, switching, cable modem termination systems (CMTS), RF Gateway-10 (RFGW-10) universal edge quadrature amplitude modulator (U-EQAM), Unified Computing Systems (UCS), storage networks, and a variety of Videoscape components.
*Based on type, the global electro-optic modulator market has been segmented into polarization modulators, amplitude modulators, phase modulators, analog modulators, liquid crystal modulators, traveling wave modulators, and thermally compensated modulators.

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