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1.中国科学院 沈阳自动化研究所 智能检测与装备研究室, 辽宁 沈阳 110016
2.中国科学院 机器人与智能制造创新研究院, 辽宁 沈阳 110169
3.中国科学院大学, 北京 100049
4.西安航天发动机有限公司, 陕西 西安 710100
[ "崔昊(1996-), 男, 辽宁铁岭人, 硕士研究生, 2018年于中国石油大学(华东)获得学士学位, 主要从事自动化测量技术及仪器开发等方面的研究。E-mail:cuihao@sia.cn" ]
[ "李兴强(1989-), 男, 辽宁鞍山人, 博士, 副研究员, 2017年于天津大学获得博士学位, 主要从事光电测量技术、几何量测量新仪器的研究。E-mail:lixingqiang@sia.cn" ]
收稿日期:2019-12-18,
修回日期:2020-03-09,
录用日期:2020-3-9,
纸质出版日期:2020-07-15
移动端阅览
崔昊, 郭锐, 李兴强, 等. 面向位置敏感器件的反馈堆叠信号滤波[J]. 光学 精密工程, 2020,28(7):1568-1576.
Hao CUI, Rui GUO, Xing-qiang LI, et al. Complex signal filter method for position sensitive devices application using a feedback stacking model based on extreme learning machine[J]. Optics and precision engineering, 2020, 28(7): 1568-1576.
崔昊, 郭锐, 李兴强, 等. 面向位置敏感器件的反馈堆叠信号滤波[J]. 光学 精密工程, 2020,28(7):1568-1576. DOI: 10.37188/OPE.20202807.1568.
Hao CUI, Rui GUO, Xing-qiang LI, et al. Complex signal filter method for position sensitive devices application using a feedback stacking model based on extreme learning machine[J]. Optics and precision engineering, 2020, 28(7): 1568-1576. DOI: 10.37188/OPE.20202807.1568.
为解决位置敏感器件(PSD)提取光斑位置信息的不准确性,克服元器件、信号处理电路等带来的随机噪声干扰,本文提出了一种基于极限学习机(ELM)的反馈堆叠模型(FsELM)。该模型使用ELM作为基本训练块,以单层预测结果与目标真值的偏差作为依据对输入数据进行更新,并进行循环训练,形成反馈堆叠的结构,从而实现PSD信号有效信息的深度提取。同时设计进行了基于一维PSD的激光三角位移检测实验验证算法的性能,比较了传统滤波算法、经典学习算法、ELM及其变体和本文提出的FsELM方法对数据的处理效果。实验结果表明:FsELM预测精度明显优于其他处理方法,预测结果均方误差可达1.4×10
-5
,预测精度为0.78%;除ELM等单次训练结构外,FsELM模型的运算速度比其他处理方法更快。该结果证明了FsELM在应对随机噪声干扰的优异性能,以及不确定环境下突出的预测能力。
To minimize position information extraction inaccuracy while using Position Sensitive Devices (PSD)
and to overcome noise jamming resulting from components and signal processing circuits
a Feedback stacking model based on Extreme Learning Machine (FsELM) was proposed. FsELM employed Extreme Learning Machine (ELM) as the basic training block
updated the input data based on the differences between the truth values and monolayer predicted results
developed the feedback stacking models by cyclic training
and realized the effective depth extraction information of the PSD signals. Further
a one-dimensional PSD-based laser triangular displacement detection experiment was designed to evaluate the performance of the algorithm. The processing abilities of traditional filtering methods
such as classical learning algorithm
ELM
its variants and the proposed FsELM were compared. The FsELM exhibited a significantly higher prediction accuracy compared to other processing methods. The mean square error and prediction accuracy are 1.4×10
-5
and 0.78%
respectively. In addition
the operating speed of the FsELM is higher than that of all the other methods
except for the models with single training structures
such as ELM. The results demonstrate the efficient management of random noise interference and accurate prediction ability of the FsELM in uncertain environments.
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