NRZ测试码型的频谱成分NRZ(11000001010011111010) (NRZ) NRZ PRBS X PRBS NRZ NRZ NRZ ) SONET SDH 223 27 - 1 PRBS (127 2X - 1 PRBS ( ) NRZK28.5± 8b10b (PRBS)(X) 2 X - 1 PRBS ) 8b10b - 1 PRBS ( 840NRZNRZNRZ (T b ) ( 1) ( 0) NRZNRZNRZ (PSD) (a) (b)1PSDNRZ 50% (CID) CID10( (s[t] = Acos[2πf0t]) NRZ )2 deltaAδ(t) t 0A8b10b 8b10b 10 ( ) 8 CID 10 10 (BER) 64b66b BER SONET 64b66b CID SDH ( 1 0 ( n / T) A/T) ( delta *) delta delta 8 A ∑nδ(t - nT) delta T10delta delta delta 2 NRZ PSD ( 1) L = nTb ( ( 1a) PSD 0 1)1a sinc2(f)6 61.25Gbps 2Tb3 4 (1110 312.5MHz (1/L) sinc2(f) ) 1.25GHz (1/Tb)( (1b) ) ( 1 1c)1.25Gbps 2.5GHz (2/Tb)(delta) sinc 2(f) sin( π f)/( π f) (c) sinc2(f) sinc2(f) (sinc(f) (b) ) sinc2(f)20 1.25Gbps ((K28.5± 4) (1.25GHz 4) 2.5GHz) 125MHz……
猜您喜欢
推荐内容
开源项目推荐 更多
热门活动
热门器件
用户搜过
随便看看
热门下载
评论