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.
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
关键词
信道编码
离散多频音调制
格栅编码
Channel coding
Gain
Subscriber access
Discrete multitone modulation
Trellis codes
