公开(公告)号：EP0277393B1

公开(公告)日：1991-11-06

申请号：EP87202647.1

申请日：1987-12-30

申请人： Philips Electronics N.V.

发明人： Bergmans, Johannes W. M. ,  Wong, Yau Cheung

IPC分类号： H04L25/03

CPC分类号： H04L25/03057

公开(公告)号：EP0277393A1

公开(公告)日：1988-08-10

申请号：EP87202647.1

申请日：1987-12-30

申请人： Philips Electronics N.V.

发明人： Bergmans, Johannes W. M. ,  Wong, Yau Cheung

IPC分类号： H04L25/03

CPC分类号： H04L25/03057

摘要： An arrangement for combatting intersymbol interference and noise introduced into a data signal transmitted at a symbol rate 1/T by a transmission channel having a memory span LT corresponding to a number of L consecutive data symbols, comprises a receive filter (RF), a first decision circuit (ID) for forming preliminary symbol decisions in response to the transmitted data signal, a second decision circuit (FD) for forming final symbol decisions, means (FFS and FBS) for compensating pre- and post-cursive inter­symbol interference, and a combining circuit (AD) for for­ming the input signal for the second decision circuit (FD). By selecting in these compensating means the memory span MT of the feedforward section (FFS), and possibly also the memory span NT of the feedback section (FBS), to be smaller than the memory span LT of the transmission channel, a simplification of the implementation of the arrangement is achieved, whereas the attainable transmis­sion quality does not appreciably differ from the transmission quality attainable with MT=NT=LT.

摘要翻译： 通过具有对应于多个L个连续数据符号的存储器跨度LT的传输信道，引入到以符号速率1 / T传输的数据信号中的符号间干扰和噪声的布置包括接收滤波器（RF），第一 用于响应于发送的数据信号形成初步符号决定的判定电路（ID），用于形成最终符号判定的第二判定电路（FD），用于补偿前后草图干扰的装置（FFS和FBS），以及 组合电路（AD），用于形成第二判定电路（FD）的输入信号。 通过在这些补偿装置中选择前馈部分（FFS）的存储器跨度MT以及反馈部分（FBS）的存储器跨度NT小于传输通道的存储器跨度LT，简化了 实现该装置，而可实现的传输质量与MT = NT = LT可达到的传输质量没有明显差异。