相位展开的6种算法比较

相位展开算法主要可以分为路径跟踪算法和全局展开算法。为了比较这些算法的性能,采用计算机模拟斜面和高斯面,并加入不同程度噪声产生包裹相位;从两大类中各选取3种比较典型的算法分别对其进行相位展开,计算它们的均方根误差;最后对实验数据进行比较和理论分析。结果表明,基于网络规划的最小费用流算法和基于贝叶斯推断的ZπM算法是较为有效的算法,在实际应用中值得选择和改进。

Comparison of six phase unwrapping algorithms

Various phase unwrapping algorithms have been proposed for the last two decades.They mainly can be grouped into two classes:Path-following and global phase unwrapping algorithms.In order to compare their performances,firstly,different type wrap phases were generated according to computer-simulating inclined and Gaussian planes at various noise levels.Then three representative algorithms were chosen from the two classes respectively and their unwrapping phases and root-mean-square errors were calculated.Last...