precomputed

The inner product in interpolation interpretation is a residual and therefore can be precomputed successively.

品的内在插值的解释是剩余，因此可算成功。

Several precomputed look-uptables are provided as combinations from 8 to 16 bit phase andamplitude resolution.The frequency resolution can is defined asgeneric.

预先计算得到的查找表资料提8-16位的相位和幅度精度。