研究了应用格林第二恒等式进行相位解缠的可能性。在假定相位的边界法线方向导数为已知的条件下，导出一种基于格林第二恒等式的相位解缠算法，并且与最小二乘法及G.Fornaro等人的算法进行比较。结果表明，这三者之间完全等效，由此有效地将G.Fornaro等人的算法与最小二乘法联系在一起。

This paper analyzes the possibility of phase unwrapping using Green’s second identity. Assuming that the normal deviation along the border is known, this paper addresses a new phase unwrapping algorithm based on use of Green’s second identity and compares the performance of the new algorithm with the algorithm based on use of Green’s first identity as well as LMS.Results have proved that the new algorithm is equivalent that of LMS as well as Green’s first identity.