Filtering method for diffraction patterns of particles based on spin filtering

By the analysis of several common filtering methods, a filtering method of diffraction fringes is used based on the spin filtering with a thorough consideration of the special needs of light diffraction method to diffraction fringes. The filtering results of simulated diffraction patterns prove that the spin filtering with curve windows is effective in the noise filtering of diffraction patterns and keeps the available signal of patterns at the same time. It can improve the measurement accuracy of particle size.