| 摘要 |
A digital filter for filtering multi signal and filtering method using the same is provided to simplify the constitution of total hardware and save cost. A digital filter for filtering multiple signal comprises an odd/even number separation unit(102), odd number filter(104), even number filter(106), filter coefficient selection unit(112), add and subtraction calculator(108) and output arrange unit(114). The odd/even number separation unit divides signal transferred to input terminal into even number signal and odd number signal. The odd number filter filters the signal separated to the odd number. The even number filter filters the signal separated to the even number. The filter coefficient selection unit selects the filter coefficient. |
