WU Hua-ming, LIU Xian-shuang, SUN Xue-yong, et al. Design of double Sigmoid function adaptive denoising and network transmission system based on FOCT[J]. 2018, 37(11): 121-123+127.
WU Hua-ming, LIU Xian-shuang, SUN Xue-yong, et al. Design of double Sigmoid function adaptive denoising and network transmission system based on FOCT[J]. 2018, 37(11): 121-123+127. DOI: 10.13873/j.1000-9787(2018)11-0121-03.
FOCT双Sigmoid函数自适应去噪及网络传输系统设计
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。
Abstract
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.
An Improved Variable Step Size LMS Algorithm Based on Sigmoid Function [J] . Li Liu,Qiong Wang,Hong Ping Bai. Applied Mechanics and Materials . 2014 (602)
Research on the Improvement of OCT Used in Power System [J] . Jing Xu. Applied Mechanics and Materials . 2013 (385)
A New Variable Step Size LMS Adaptive Filtering Algorithm and its Analysis [J] . Guo Fu Tian,Shi Zhou Zhang,Shu Hui Sun. Advanced Materials Research . 2013 (605)