What is another word for phase modulation?
Pronunciation: [fˈe͡ɪz mˌɒdjʊlˈe͡ɪʃən] (IPA) 
Phase modulation refers to the process of modifying the phase of a waveform in order to transmit information. There are several synonyms for phase modulation, some of which include phase shift keying, angle modulation, and frequency modulation by phase. Phase shift keying involves transmitting digital data by changing the phase of the waveform. Angle modulation is a broader term that encompasses both frequency modulation and phase modulation. Frequency modulation by phase is a technique in which the phase of a signal is changed in proportion to the frequency of the signal. These terms are commonly used in telecommunications and digital signal processing applications.
