格栅编码在离散多频音调制中的应用  

Application of trellis codes in discrete multitone modulation

作　　者：王晓秋[1] 林华[1] 石文孝[1] 

机构地区：[1]长春邮电学院通信工程系

出　　处：《长春邮电学院学报》1997年第4期48-52,共5页Journal of Changchun Post and Telecommunication Institute

摘　　要：讨论了采用格栅编码的离散多频音调制（ＤＭＴ）系统，并推导出了编码增益的具体计算方法。该系统可获得３～６ｄＢ的编码增益，等效于降时误码率或传送距离更远。Discrete multitone modulation system using trellis codes is studied. A calculation method in coding gain is proposed. 3 to 6 dB coding gain can be obtained in the proposed system which is equivalent to either reduction of bit error rate or increase of transmission distance.

关 键 词：信道编码 离散多频音调制 格栅编码 

分 类 号：TN911.22[电子电信—通信与信息系统] TN761[电子电信—信息与通信工程]