Accurate algorithms for parameter estimation of multiple signals

被引：0

作者：

Wu, JK ^{[1
]}

Long, J ^{[1
]}

Liang, Y ^{[1
]}

He, F ^{[1
]}

机构：

[1] Guangxi Univ, Inst Elect Engn, Nanning 530004, Peoples R China

来源：

SICE 2004 ANNUAL CONFERENCE, VOLS 1-3 | 2004年

关键词：

multi-component signal; parameter evaluation; numerical differentiation; Lagrange interpolation;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A novel algorithm for amplitude and phase estimation of the multi-component signals is presented in this paper. The proposed algorithm is based on numerical differentiation and central Lagrange interpolation, and needs 1 signal sample with 7 points and I computation process. With any frequency value of component 1, 2 and 3 of the signal over 1Hz to 100kHz, the amplitude and phase angle of the signal are all estimated at an error of lesser than 0.1% with the amplitudes of the component 1, 2 and 3 varying from 1V to 200V and the phase angle of the component 1, 2 and 3 varying from 0 to 360. Spending at most half cycle for parameter estimation of the multicomponent, so that the proposed algorithm is adaptive to any intelligent measurement and control. A testing example is given to illustrate the proposed algorithm, with the simulation is carried out in Matlab software.

引用

页码：2822 / 2825

页数：4