“unidirectional pulse-amplitude modulation”的概念、定义、翻译、参考文献-科学参考

单词	unidirectional pulse-amplitude modulation
释义	unidirectional pulse-amplitude modulation [¦yü·nǝ·dǝ`rek·shǝn·ǝl ¦pǝls ¦am·plǝ´tüd ´mäj·ǝ`lā·shǝn] ^{COMMUNICATIONS} Modulation of pulse-amplitude type in which all pulses rise in the same direction. Also known as single-polarity pulse-amplitude modulation.
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