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| 基于EMD自适应滤波的信号积分方法研究 | |
| 引用本文： | 蔡烽,王大云,张华,缪泉明.基于EMD自适应滤波的信号积分方法研究[J].船舶力学,2007,11(4):528-532. |
| 作者姓名： | 蔡烽 王大云 张华 缪泉明 |
| 作者单位： | 1. 海军大连舰艇学院,辽宁,大连,116018;中国船舶科学研究中心,江苏,无锡,214082 2. BMT Fleet Technology Ltd.,Ontario,Canada 3. 中国船舶科学研究中心,江苏,无锡,214082 |
| 摘 要： | 针对从测量所得的加速度信号通过直接积分变换为速度信号和位移信号时精度不够的不足,提出了基于FFT时频转换和EMD自适应滤波的积分变换新方法.通过对海浪模拟信号的仿真,表明该方法可以有效实现测量信号的高精度积分变换,对某船模水池Z型试验中角速度/航向数据的分析验证了该方法在实际信号测量和分析中的有效性. |
| 关 键 词： | 加速度 积分变换 船舶 |
| 文章编号： | 1007-7294（2007）04-0528-05 |
| 修稿时间： | 2007-01-17 |
Study on signal integration method based on EMD self-adaptive filter |
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| CAI Feng,WANG Da-yun,ZHANG Hua,MIAO Quan-ming.Study on signal integration method based on EMD self-adaptive filter[J].Journal of Ship Mechanics,2007,11(4):528-532. | |
| Authors: | CAI Feng WANG Da-yun ZHANG Hua MIAO Quan-ming |
| Institution: | 1 Dalian Naval Aeade,ny, Dalian 116018, China; 2 China Ship Scientific Research Center, Wuxi 214082. China; 3 BMT Fleet Technology Ltd., Ontario. Canada |
| Abstract: | Aiming at the shortcoming of less precision in transforming measured acceleration signal to velocity or to elevation signal,a new method of integration transformation based on FFT time-domain transformation and EMD self-adaptive filter is presented.Simulation results of wave signal demonstrate the high precision of this method in acceleration integration transformation and the application in analyzing the angle velocity/course in some ship model's zigzag test indicates this method is effective for practical measurement. |
| Keywords: | Empirical mode decomposition FFT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |