A.10^-3 B.10^-4 C.10^-5 D.10^-6
A.把時(shí)間上連續(xù)的信號(hào)變成時(shí)間上離散的信號(hào) B.把幅度上連續(xù)的信號(hào)變成幅度上離散的信號(hào) C.把模擬信號(hào)變成數(shù)字信號(hào) D.把數(shù)字信號(hào)變成模擬信號(hào)
A.對(duì)樣值取絕對(duì)值 B.產(chǎn)生判定值 C.編極性碼 D.編幅度碼