为加快利用小波变换处理干涉条纹图的速度及提高干涉测量系统的实时动态特性，提出傅里叶变换和小波变换相结合的相位求解方法。利用傅里叶变换得到单幅干涉条纹图的频谱分布，确定干涉条纹图的频率范围和干涉条纹的方向，由此得到精确的小波变换的尺度因子范围和小波旋转角度范围，从而快速完成小波变换过程，实现干涉条纹图相位求解。在计算机模拟分析中，时间能加快约10 s，在实验分析中，时间能加快约21 s。 结果表明所提方法仅需要一幅干涉条纹图，实现傅里叶变换与小波变换的有效结合，加快了干涉条纹图的处理速度，提高了干涉测量系统的实时特性。

To consider both the dynamic characteristic and the speed of wavelet transform in interferegram, a new method calculating the phase of fringe pattern is presented. The presented method combines the Fourier transform and the wavelet transform. The frequency distribution of one fringe pattern is gotten by the Fourier transform. Then the frequency range and the direction of fringe pattern can be certained. Thus, the scale factor and rotation angel of the wavelet can be determined accurately. So the wavelet transform of fringe pattern can be performed fast. For simulation analysis, we save 10 s, and for experimental analysis, we save 21 s. The results show the validity of the developed method to improve the real-time characteristic of interferometry.