| 摘要 |
In a cross-polarization interference canceller employing a transversal filter, when a tap coefficient of the transversal filter is generated by averaging resultant values of correlation between a residual error component and a data polarity signal of a different polarized wave, a moving average derived by averaging with a sum of most recent given number of bits of correlation results, is employed. Even when offset is caused on the correlation results due to random characteristics of the received signal, the offset cannot be accumulated to allow derivation of the true tap coefficient since the sum of most recent given number of bits of correlation results is used. <IMAGE> |
