香农内插值公式，可以用在数字信号处理中从采样序列中恢复出原信号。-Within the Shannon interpolation formula can be used in digital signal processing in sequence from the sample to recover the original signal.

基于频域插值的sinc插值函数源码，成像方面的可以参考利用-sinc interpolation function source, imaging can reference. . .