为了提高球面参考光预放大数字全息术相位重建的精度及重建速度，采用计算机模拟与实验验证相结合的方法，对基于同态信号处理的广义线性重建算法(GL-HSP)在球面参考光预放大数字全息显微系统中的应用进行了研究。通过利用快速傅里叶变换算法(CL-FT)及GL-HSP 两种算法对待测样品的强度及相位信息进行重建，并对所得结果进行对比分析，可以得出：GL-HSP 算法的整象限滤波操作不仅提高了数字全息术的重建速度，而且在优化的物参比条件下，该算法极大限度地保留了频谱的高频成分，具有更高的重建精度，更加适合于微物体的高精度重建。同时实验得到的相位图标准偏差结果定量地说明了GL-HSP 算法是一种优化的重建算法。

In order to improve the accuracy and the speed of reconstructed image in the pre-magnification digital holographic microscopy system with spherical reference wave, the generalized linear reconstructing algorithm based on homomorphic signal processing (GL-HSP) is analyzed by computer simulation and experimental verification. Through using the algorithms based on fast Fourier transform (FFT) method and GL-HSP algorithm to reconstruct the intensity and phase information of texted samples, the reconstructed results clearly show that the GL-HSP algorithm not only has higher reconstructed accuracy, but also has higher reconstructed speed. As the GL-HSP algorithm chooses the whole quadrant as the filtered area, it has all of the high frequencies. So the GL-HSP algorithm is more suitable for high-accuracy reconstructing the micro-subjects. At the same time, the results of standard deviation in the experimental date quantitatively show the superiority of the GL-HSP algorithm.