根据多项式拟合插值算法，详细推导出了3阶调相插值方程，可以作为插值的设计方案参考。-Interpolation algorithm based on polynomial fitting, detailed three-order phase modulation derived interpolation equations, interpolation can be used as design reference.

一种改进的基于调制度的最小二乘位相提取算法的源代码-Based on an improved adjustable system least squares phase extraction algorithm source code