光学学报, 2016, 36 (6): 0629002, 网络出版: 2016-06-06   

前向散射颗粒粒径分布分析中的向量相似度反演算法

Vector Similarity Retrieval Algorithm in Particle Size Distribution Analysis of Forward Scattering
作者单位
上海理工大学理学院, 上海 200093
摘要
目前,向量相似度测量(VSM)算法被应用于分析前向散射颗粒测试技术的颗粒粒径分布(PSD)。但其对多峰分布颗粒情况的反演结果并不理想,尤其是对3个峰值以上的颗粒分布。为了满足预测多峰分布颗粒的需要及提高普遍适用性,提出了一种基于向量相似度的优化迭代算法,并将其用于颗粒粒径分布函数的反演计算。模拟计算和实验研究均表明:该算法在较高的测量误差情况下仍可得到合理的颗粒粒径分布。
Abstract
Recently, the vector similarity measurement (VSM) algorithm has been introduced to analyze particle size distribution (PSD) of the forward scattering. However, the retrieval result is not ideal for multi-modal distribution particle systems, especially for the particle distributions of more than three peaks. To satisfy the need of predicting multi-peak distribution particle and enhancing common applicability, a modified iterative algorithm is proposed based on vector similarity measurement, and it is applied in retrieval calculation of PSD function. Simulated results and experimental researches show that the algorithm can also get the reasonable PSD with high measurement error.
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王天恩, 沈建琪, 林承军. 前向散射颗粒粒径分布分析中的向量相似度反演算法[J]. 光学学报, 2016, 36(6): 0629002. Wang Tian’en, Shen Jianqi, Lin Chengjun. Vector Similarity Retrieval Algorithm in Particle Size Distribution Analysis of Forward Scattering[J]. Acta Optica Sinica, 2016, 36(6): 0629002.

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