PAM),脈波寬度調變(Pulse-width modulation, PWN)脈波位置調變(Pulse Position modulation,PPM)以及脈波符碼調變 (Pulse code modulation, PCM)。其中前三者是屬於類比式調變,而PCM則是屬於數位式調變,將分逑於下面各節 ...
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