不归零(NRZ) 0 ↓0↓011110 r=1 Save=N/2 P NRZ-L Time 1 Bandwidth 0.5 NRZ-I Time 0 0 2 f/N O No inversion:Next bit is 0 Inversion:Next bit is 1 ● Inversion,.反相 ● 在极性NRZ(polar NRZ☑编码中,信号有两个电 平,常有NRZ-L(NRZ电平编码,NRZ-Level) 和NRZ-I(NRZ反相编码,NRZ-Invert) 4.17 Figure 4.6 Polar NRZ-L and NRZ-I schemes 4.17 Figure 4.6 Polar NRZ-L and NRZ-I schemes 不归零(NRZ) Inversion, 反相 在极性NRZ(polar NRZ)编码中,信号有两个电 平,常有NRZ-L(NRZ电平编码,NRZ-Level) 和NRZ-I(NRZ反相编码,NRZ-Invert)