2PSK解调存在相位模糊现象,利用2DPSK来克服相位模糊带来的问题。
查看答案
2DPSK解调时不存在相位模糊。
A. 对
B. 错
Michal started learning English by ________every day.
Michal feels delighted and proud when he listens to the Beatles because now he ________.
Besides listening to English songs, Michal also ________.
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