用伽柏小波作干涉波前重建

在分析傅里叶相位展开法中存在的一阶频谱定位误差的基础上，尤其针对实际工作中非严格均匀参考条纹干涉图的相位展开问题，提出基于伽柏小波的局域匹配滤波方法，构造多通道伽柏滤波器，得到在Ｍａｌｌａｔ极大模意义下的最佳匹配相位。

Wave-Front Retrieval by Gabor Wavelets

On the basis of localization error of the first order frequency spectrum associated with interferogram phase unwrapping by Fourier transform method, especially aimed at phase unwrapping for practical interferograms with nonstrictly parallel and equally spaced references, a method of localized matching filtering using Gabor wavelets is proposed. Multi channel Gabor spatial filter set is constructed to get the best matched local spatial frequency in meaning of Mallat maximum modulo. At the same time noises and opaque objects can be removed. The method is proved more effective than conventional Fourier transform method for cases of nonequally spaced references and seriously deformed fringes by applying it to simulated and real interferograms to reconstruct interferometric wave fronts.