Большой англо-русский и русско-английский словарь
position modulation, pulse-delay modulation, pulse-interval modulation, pulse-phase modulation, pulse-position modulation, pulse-spacing modulation
Русско-английский политехнический словарь
position modulation, pulse-delay modulation, pulse-interval modulation, pulse-phase modulation, pulse-position modulation, pulse-spacing modulation