另一种方法是对公共载波调频或调相的方法发送并列信道的组合数字信号。
An alternative method is to transmit the combined digital signal from the parallel channels by frequency or phase modulation of common carrier.
另一种方法是对公共载波调频或调相的方法发送并列信道的组合数字信号。
An alternative method is to transmit the combined digital signal from the parallel channels by frequency or phase modulation of common carrier.
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