|This article does not cite any references or sources. (May 2015)|
|This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (March 2013)|
Angle modulation is a class of analog modulation. These techniques are based on altering the angle (or phase) of a sinusoidal carrier wave to transmit data, as opposed to varying the amplitude, such as in AM transmission.
Angle Modulation is modulation in which the angle of a sine-wave carrier is varied by a modulating wave. Frequency Modulation (FM) and Phase Modulation (PM) are two types of angle modulation. In frequency modulation the modulating signal causes the carrier frequency to vary. These variations are controlled by both the frequency and the amplitude of the modulating wave. In phase modulation the phase of the carrier is controlled by the modulating waveform.
The two main types of angle modulation are:
- Frequency modulation (FM), with its digital correspondence frequency-shift keying (FSK).
- Phase modulation (PM), with its digital correspondence phase-shift keying (PSK).
- "Amateur Radio application of Frequency Modulation". Archived from the original on 2006-02-02.
Lua error in package.lua at line 80: module 'Module:Buffer' not found.