noun
pulse modulation; PM
Technical term in electronics and communications; refers to modulating a pulse train's parameters (amplitude, width, position, etc.) to encode information.
パルス変調はデジタル通信の基礎技術の一つです。
Pulse modulation is one of the fundamental techniques in digital communication.
Compound of パルス (from English 'pulse') and 変調 (modulation).