公开(公告)号：US08671128B1

公开(公告)日：2014-03-11

申请号：US11981847

申请日：2007-10-30

申请人： Hossein Dehghan ,  Karl Kowk Ho Yick ,  Sam Heidari

发明人： Hossein Dehghan ,  Karl Kowk Ho Yick ,  Sam Heidari

IPC分类号： G06F17/10 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H03H17/06 ,  H03H17/0223 ,  H03H17/0292 ,  H03H17/0294 ,  H04B1/71057

摘要： A finite impulse response filter (FIR) for processing a communication channel. The FIR comprises a delay line, a tap processor and a summer. The delay line has “N” taps to successive portions of the communication channel. The delay line shifts the successive portions of the communication channel once in each symbol processing interval. The tap processor subjects each of the “N” taps to a first scaling utilizing first scaling coefficients associated with filtering the current symbol interval and further subjects at least one of the “N” taps to a second scaling by a second scaling coefficient associated with filtering the prior symbol interval. The summer generates in each symbol interval a filtered output comprising a sum of the “N” scaled taps from the first scaling in the prior symbol interval and the second scaling of the at least one tap in the current symbol interval, thereby increasing an order of the FIR without corresponding increase in an order of the delay line.

摘要翻译： 一种用于处理通信信道的有限脉冲响应滤波器（FIR）。 FIR包括延迟线，抽头处理器和夏季。 延迟线对通信信道的连续部分具有“N”个抽头。 延迟线在每个符号处理间隔中移动通信信道的连续部分一次。 抽头处理器利用与滤波当前符号间隔相关联的第一缩放系数对“N”抽头中的每一个进行第一缩放，并且使“N”个抽头中的至少一个进行第二缩放，与通过滤波相关联的第二缩放系数 先前符号间隔。 夏天在每个符号间隔产生包括来自先前符号间隔中的第一缩放的“N”个标度的抽头和当前符号间隔中的至少一个抽头的第二缩放的滤波输出，从而增加 FIR没有相应增加延迟线的顺序。