Improved Double Sigmoid Function Variable Step Size Adaptive Algorithm and Its Application in OCT

LIU Xian-shuang; WU Hua-ming; XIAO Wen-bo; SUN Xue-yong; ZHU Jun

doi:10.3969/j.issn.0372-2112.2019.01.031

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Improved Double Sigmoid Function Variable Step Size Adaptive Algorithm and Its Application in OCT

更新时间：2025-07-16

- Improved Double Sigmoid Function Variable Step Size Adaptive Algorithm and Its Application in OCT
- Acta Electronica Sinica Vol. 47, Issue 1, Pages: 234-240(2019)
- 作者机构：
  
  1. 江西省光电检测技术工程实验室南昌航空大学测试与光电工程学院,江西,南昌,330063
  2. 江西省电力设计院,江西,南昌,330006
  3. 江西省光电检测技术工程实验室南昌航空大学测试与光电工程学院,江西,南昌,330063
  4. 江西省电力设计院,江西,南昌,330006
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2019.01.031
  CLC： TH741
- Published Online：25 January 2019，
  
  Published：2019
- 稿件说明：
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LIU Xian-shuang, WU Hua-ming, XIAO Wen-bo, et al. Improved Double Sigmoid Function Variable Step Size Adaptive Algorithm and Its Application in OCT[J]. Acta Electronica Sinica, 2019, 47(1): 234-240.
DOI：

LIU Xian-shuang, WU Hua-ming, XIAO Wen-bo, et al. Improved Double Sigmoid Function Variable Step Size Adaptive Algorithm and Its Application in OCT[J]. Acta Electronica Sinica, 2019, 47(1): 234-240. DOI： 10.3969/j.issn.0372-2112.2019.01.031.

摘要

为提高光学电流互感器（Optical Current Transducer，OCT）在低信噪比环境下的测量准确度和长期稳定性，该文从影响OCT性能关键因素之一的算法入手，在分析现有的变步长自适应算法的基础上，结合OCT输出信号的特征和OCT工作的环境，提出一种改进的双Sigmoid函数变步长自适应算法，并将这种算法与现有的变步长自适应算法进行了仿真对比分析以及利用ActiveX技术将该算法在OCT中进行了应用测试，证明了该算法在低信噪比环境下提高OCT的测量准确度和长期稳定性的优势.

Abstract

In order to improve the measurement accuracy and long-term stability of OCT in low SNR(signal-noise ratio) environment

this paper starts from the algorithm that one of the key factors affects the performance of OCT.Basing on the analysis on existing variable step size adaptive algorithm

combining the characteristics of the output signal of OCT and the working circumstance of OCT

we proposed an improved double Sigmoid function variable step size adaptive algorithm

and compared this algorithm with the existing variable step size adaptive algorithm through simulation.Then

the algorithm is tested in OCT based on ActiveX.The results demonstrated the advantage of this algorithm in improving the measurement accuracy and long-term stability of OCT in low SNR environment.

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