| 摘要 |
PURPOSE:To achieve the conversion of sampling frequency and data operation between sampling data of different sampling frequencies, by interpolating point of time other than sampling points of the sampling data. CONSTITUTION:A sampling data generating section 10 generates sampling data and it is given to an interpolation circuit 20. On the other hand, from an inpulse response data generating section 30, a unit impulse response data of an ideal low-pass filter taking the cut-off frequency as 1/2T is applied to the interpolation circuit 20, which multiplies the response data like this with the sampling data from the sampling data section 10, and data at arbitrary points on time axis can be obtained by summing the multiplied data. |
