A.FDM B.時(shí)分多路復(fù)用 C.調(diào)頻復(fù)用 D.調(diào)相復(fù)用
A.數(shù)字?jǐn)?shù)據(jù)轉(zhuǎn)換為數(shù)字信號(hào)B.模擬數(shù)據(jù)轉(zhuǎn)換為數(shù)字信號(hào)C.數(shù)字?jǐn)?shù)據(jù)轉(zhuǎn)換為模擬信號(hào)D.模擬數(shù)據(jù)轉(zhuǎn)換為模擬信號(hào)
A.9600b/s B.8400b/s C.2560b/s D.12800b/s