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簡述數字衛星通信方式有哪些?

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正確答案:

答:

(1)TDM/PSK/TDMA方式;

(2)SS/TDMA方式;

(3)TDM/PSK/FDMA方式;

(4)TDMA/FDMA方式;

(5)SCPC/PSK/FDMA方式;

(6)CDMA方式;

(7)VSAT方式。

答案解析:

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雙工制通信就是指移動通信雙方可()進行發信和收信,這時收信與發信必須采用不同的工作頻率,稱為頻分雙工。

移動通信網無線區群的中心激勵是指基地臺位于無線小區的中心,并采用()實現無線小區的蓋。

通信衛星按使用的業務頻段分有UHF、()、Ku、Ka等頻段的單頻段衛星,或兩種以上頻段的多頻段綜合型衛星。

半雙工制通信方式與雙工通信相類似,其中一方使用雙頻雙工通信方式,另一方則使用雙頻單工方式,發信時要按下按講開關。

當無線用戶之間可以直接進行通信時,我們稱這種方式為()通信。

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