Simulation of Dynamic Light Scattering Signals of Ultrafine Particles |
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| Authors: | Ya jing Wang Jin Shen Gang Zheng Wei Liu Xin jun Zhu |
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| Institution: | 1. School of Electrical and Electronic Engineering, Shandong University of Technology, Zhangzhou Road 12, 255049 Zibo (China);2. College of Optics and Electronic Information Engineering, Shanghai University of Science and Technology, Jungong Road 516, 20093 Shanghai (China) |
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| Abstract: | In order to conveniently obtain dynamic light scattering (DLS) signal, a simulation method of DLS signal is proposed in this paper. This method regards the light intensity fluctuation of DLS as a stationary random process. According to autocorrelation function (ACF) of DLS signal, the stationary random process of DLS can be generated by auto‐regressive (AR) model. Signal simulations of several kinds of distribution particles and comparison of simulations and experiment prove that AR model can be used for DLS signal simulation. Moreover, by analyzing effect of simulation parameters on simulation precision, we obtained the relationship between simulation parameters and simulation precision. Finally, application of simulation signal verifies the effectiveness and convenience of this simulation method. |
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| Keywords: | auto‐regressive model dynamic light scattering signal simulation ultrafine particles |
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