| 基于小波分析的测角系统误差补偿研究 |
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| 引用本文： | 邓辉宇,王欣利,苏宝库.基于小波分析的测角系统误差补偿研究[J].哈尔滨工业大学学报,2004,36(1):95-98. |
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| 作者姓名： | 邓辉宇 王欣利 苏宝库 |
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| 作者单位： | 哈尔滨工业大学,航天学院,黑龙江,哈尔滨,150001;上海交通大学,机器人研究所,上海,200230;哈尔滨工业大学,航天学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 应用二阶循环平稳理论对测角系统误差信号的相关函数和频谱特性的分析，证明了其为循环平稳信号，首次提出测角系统误差信号为非平稳信号的观点，为小波重构测角系统误差提供了理论依据，应用小波分析中的一维Mallat算法重构测角系统误差，以小波变换的重构信号作为误差信号进行计算机补偿，提高了测角系统的准确度。
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| 关 键 词： | 小波变换 Mallat 算法 信号重构 周期平稳信号 |
| 文章编号： | 0367-6234(2004)01-0095-04 |
| 修稿时间： | 2002年7月10日 |
Angular measuring system error compensation based on wavelet analysis |
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| DENG Hui-yu,WANG Xin-li,SU Bao-ku.Angular measuring system error compensation based on wavelet analysis[J].Journal of Harbin Institute of Technology,2004,36(1):95-98. |
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| Authors: | DENG Hui-yu WANG Xin-li SU Bao-ku |
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| Abstract: | Auto-correlation function and spectrum character of angular measuring system error are analysed u-sing the cyclostationary signal theory, and the angular measuring system error is proved to be cyclostationary signal, and it is suggested that the angular measuring system error is non-stationary thereby providing theoreci-cal basis for analysis of angular measuring system by wavelet analysis. Error signal is reconstructed by one dimension Mallat' s algorithm, reconstruction signal instead of original error signal is used to compensate the system error to improve the angular measuring system accuracy. |
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| Keywords: | wavelet transform mallet' s algorithm signal reconstruction cyclostationary signal |
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