Simulation of dynamic light scattering signal for ultrafineparticles based on the exponential model

WANG Ya-jing; ZHENG Gang um SHEN Jin; LIU WeiZHU Xin-jun

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Simulation of dynamic light scattering signal for ultrafineparticles based on the exponential model

机译：Simulation of dynamic light scattering signal for ultrafineparticles based on the exponential model

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摘要

According to the autocorrelation function (ACF) of dynamic light scattering (DLS) signals, the exponential model used forscattering signal simulation can be established. Based on this model, nine kinds of DLS signals for unimodal, bimodal andtrimodal distribution particles are simulated respectively. The ACF of the simulated signal agrees with its theoretical valuevery well. Inverted size errors of simulative signals for unimodal distribution particles by Cumulants method and those forbimodal and trimodal distribution particles by nonnegative constraint least squares (NNLS) are less than 0.13, 2.11 and3.01, respectively. Comparing the exponential model with autoregressive (AR) model, the calculation time of the formeris less than one tenth of the latter. Hence, the exponential model is more effective in the simulation of DLS signals.

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来源
《Optoelectronics letters》 |2010年第4期|0302-0305|共4页
作者
WANG Ya-jing; ZHENG Gang um SHEN Jin; LIU WeiZHU Xin-jun;
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作者单位

College of Optics and Electronic Information Engineering, Shanghai University of Science and Technology, Shanghai200093, China;

College of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255049, China;

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原文格式 PDF
正文语种英语
中图分类光电子技术、激光技术;
关键词
signal; Simulation; particles;

Simulation of dynamic light scattering signal for ultrafineparticles based on the exponential model

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