In this paper a fast inter- polation algorithm originated from the classical Whittaker Reconstruction is first derived. And basis transform is then introduced in extending Campbell Reconstruction to general finite length signals.

• 本文首先导出了源于经典的 Whittaker重构的一种内插的快速计算,然后引入基线变换将Campbell重构扩展到一般有限长度信号。