Angle modulation in which the phase angle of a carrier is caused to depart from its reference value by an amount proportional to the instantaneous value of the modulating signal . ( 188 )
PHASE MODULATION (PM)
Meaning of PHASE MODULATION (PM) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012