在西部地区电力通信网络的建设中,长站距传输是一个必须考虑的问题。文章介绍了四川电力"新甘石"工程中两段超长站距无中继SDH光传输通道的设计方法和施工经验。工程利用遥泵放大、超强前向误码纠错、波长转换等技术搭建系统...在西部地区电力通信网络的建设中,长站距传输是一个必须考虑的问题。文章介绍了四川电力"新甘石"工程中两段超长站距无中继SDH光传输通道的设计方法和施工经验。工程利用遥泵放大、超强前向误码纠错、波长转换等技术搭建系统,成功打通了220 k V甘孜变—220 k V西地变(361 km)和220 k V甘孜变—220 k V榆林变(348 km)2.5 G SDH光路,为遥泵技术在电力通信系统中的广泛应用提供了建设经验。展开更多
A novel Reed Solomon(RS) block turbo code(BTC) coding scheme of RS(63,58)×RS(63,58) for optical communications is proposed.The simulation results show that the net coding gain(NCG) of this scheme at the sixth ite...A novel Reed Solomon(RS) block turbo code(BTC) coding scheme of RS(63,58)×RS(63,58) for optical communications is proposed.The simulation results show that the net coding gain(NCG) of this scheme at the sixth iteration is more than that of other coding schemes at the third iteration for the bit error rate(BER) of 10-12.Furthermore,the novel RS BTC has shorter component code and rapider encoding and decoding speed.Therefore,the novel RS BTC coding scheme can be better used in high-speed long-haul optical communication systems,and the novel RS BTC can be regarded as a candidate code of the super forward error correction(super-FEC) code.Moreover,the encoding/decoding design and implementation of the novel RS BTC are also presented.展开更多
文摘在西部地区电力通信网络的建设中,长站距传输是一个必须考虑的问题。文章介绍了四川电力"新甘石"工程中两段超长站距无中继SDH光传输通道的设计方法和施工经验。工程利用遥泵放大、超强前向误码纠错、波长转换等技术搭建系统,成功打通了220 k V甘孜变—220 k V西地变(361 km)和220 k V甘孜变—220 k V榆林变(348 km)2.5 G SDH光路,为遥泵技术在电力通信系统中的广泛应用提供了建设经验。
基金supported by the National Natural Science Foundation of China(Nos.61071117and61003256)the Natural Science Foundation of Chongqing CSTC(No.2010BB2409)the Science and Technology Foundation of Chongqing Municipal Education Commission(No.KJ110519)
文摘A novel Reed Solomon(RS) block turbo code(BTC) coding scheme of RS(63,58)×RS(63,58) for optical communications is proposed.The simulation results show that the net coding gain(NCG) of this scheme at the sixth iteration is more than that of other coding schemes at the third iteration for the bit error rate(BER) of 10-12.Furthermore,the novel RS BTC has shorter component code and rapider encoding and decoding speed.Therefore,the novel RS BTC coding scheme can be better used in high-speed long-haul optical communication systems,and the novel RS BTC can be regarded as a candidate code of the super forward error correction(super-FEC) code.Moreover,the encoding/decoding design and implementation of the novel RS BTC are also presented.
