FOCT双Sigmoid函数自适应去噪及网络传输系统设计  

Design of double Sigmoid function adaptive denoising and network transmission system based on FOCT

作　　者：吴华明 刘宪爽 孙学勇[2] 朱俊[2] 傅建平 WU Hua-ming;LIU Xian-shuang;SUN Xue-yong;ZHU Jun;FU Jian-ping(Jiangxi Engineering Laboratory for Optoelectronies Testing Technology,School of Measuring and Optical Engineering,Nanchang Itangkong University,Nanchang 330063,China;Jiangxi Electric Power Design Institute,Nanehang 330006,China)

机构地区：[1]南昌航空大学测试与光电工程学院江西省光电检测技术工程实验室,江西南昌330063 [2]江西省电力设计院,江西南昌330006

出　　处：《传感器与微系统》2018年第11期121-123,127,共4页Transducer and Microsystem Technologies

摘　　要：为了提高光纤电流互感器(FOCT)输出信号的信噪比(SNR),针对FOCT输出信号的特征,提出一种改进的双Sigmoid函数变步长自适应算法,并利用ActiveX技术设计了一种自适应去噪及网络传输系统。通过设计的系统,将所提出的算法与现有的一种变步长自适应算法进行了对比分析,结果表明:提出的算法获得的抗噪声干扰能力更强,测量准确度更高。利用LabVIEW的TCP/IP开发工具包实现了数据的网络通信,满足了高压电网测量的实际工程所需。In order to improve the signal to noise radio（SNR） of the output signal of the fiber-optic current transformer（FOCT）,an improved double Sigmoid function variable step size adaptive algorithm aiming at characteristics of FOCT output signal is proposed,and a kind of adaptive denoising and network transmission system is designed by using ActiveX technology. Through the system,compare this algorithm with an existing variable step size adaptive algorithm,and analyze. The results show that this algorithm has stronger capability of anti-noise interference and higher measurement accuracy. Network communication of data is realized by using LabVIEW development kit of TCP/IP,which meets practical need of high voltage power grid measurement.

关 键 词：光纤电流互感器 变步长自适应算法 双Sigmoid函数 ACTIVEX技术 网络传输 

分 类 号：TH741[机械工程—光学工程]