题目内容

8. What are the basic modulations in digitalcommunications?

查看答案

搜索结果不匹配？点我反馈

更多问题

9. In digital communications, why are modulations nec-essary of signals that travel over high-frequencychannels?

10. Why multiplexing?

11. What are the beneits of spread spectrum?

12. What is the main feature of OFDM? Why OFDM, notCDMA, in 4G?