| 基于B-小波提高寻北仪抗基座扰动的能力 |
| |
| 引用本文： | 梁俊宇,陈家斌,谢玲,姜常川.基于B-小波提高寻北仪抗基座扰动的能力[J].北京理工大学学报,2003,23(1):50-53. |
| |
| 作者姓名： | 梁俊宇 陈家斌 谢玲 姜常川 |
| |
| 作者单位： | 北京理工大学,信息科学技术学院自动控制系,北京,100081 |
| |
| 摘 要： | 为消除静基座寻北时外部基座扰动对寻北仪精度的影响，提出采用波形反对称的三阶B-小波对寻北仪原始输出信号进行滤波处理，通过对多尺度下小波变换模极大值的分析，可以确定低频基座扰动在时域上的作用点，从而消除受污染数据对寻北精度的影响，利用实测数据进行的仿真表明，该方法能有效地提高寻北仪抗基座扰动的能力。
|
| 关 键 词： | B－小波 多尺度小波 寻北仪 基座扰动 抗扰动能力 小波变换 信号处理 |
| 文章编号： | 1001-0645(2003)01-0050-04 |
| 收稿时间： | 2002/4/26 0:00:00 |
| 修稿时间： | 2002年4月26日 |
Improving the Performance of the North Finder Against Base Motion Disturbance Based on the B-Wavelet |
| |
| LIANG Jun-yu,CHEN Jia-bin,XIE Ling and JIANG Chang-chuan.Improving the Performance of the North Finder Against Base Motion Disturbance Based on the B-Wavelet[J].Journal of Beijing Institute of Technology(Natural Science Edition),2003,23(1):50-53. |
| |
| Authors: | LIANG Jun-yu CHEN Jia-bin XIE Ling and JIANG Chang-chuan |
| |
| Institution: | Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China |
| |
| Abstract: | A new approach is presented for eliminating the effects of base motion disturbance on the accuracy of north finder mounted on a stationary carrier. The antisymmetric B-wavelet is used to process the original output signals of the north finder. The operation moment of the low frequency base motion disturbance is located in the time domain by observing the evolution of wavelet local modulus maxima across scales and the polluted data should be deserted. Preliminary simulation results based on field sampled signals indicate that this approach can effectively improve the performance of the north finder against base motion disturbance. |
| |
| Keywords: | multi-scale wavelets north finder base motion disturbance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京理工大学学报》浏览原始摘要信息 |
| 点击此处可从《北京理工大学学报》下载免费的PDF全文 |
