| 改进的双Sigmoid函数变步长自适应算法及在OCT中的应用 |
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| 引用本文： | 刘宪爽,吴华明,肖文波,孙学勇,朱俊.改进的双Sigmoid函数变步长自适应算法及在OCT中的应用[J].电子学报,2019,47(1):234-240. |
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| 作者姓名： | 刘宪爽 吴华明 肖文波 孙学勇 朱俊 |
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| 作者单位： | 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;江西省电力设计院,江西南昌,330006 |
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| 基金项目： | 国家自然科学基金;江西省自然科学基金;江西省自然科学基金;江西省青年科学基金重大项目 |
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| 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.
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| 关 键 词： | 光学电流互感器 变步长自适应算法 双Sigmoid函数 ActiveX |
| 收稿时间： | 2017-05-17 |
Improved Double Sigmoid Function Variable Step Size Adaptive Algorithm and Its Application in OCT |
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| LIU Xian-shuang,WU Hua-ming,XIAO Wen-bo,SUN Xue-yong,ZHU Jun.Improved Double Sigmoid Function Variable Step Size Adaptive Algorithm and Its Application in OCT[J].Acta Electronica Sinica,2019,47(1):234-240. |
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| Authors: | LIU Xian-shuang WU Hua-ming XIAO Wen-bo SUN Xue-yong ZHU Jun |
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| Affiliation: | 1. Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, School of Measuring and Optical Engineering, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China;
2. Jiangxi Electric Power Design Institute, Nanchang, Jiangxi 330006, China |
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| 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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| Keywords: | optical current transducer variable step size adaptive algorithm double sigmoid function ActiveX |
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