| 利用小波变换求解载波条纹的相位调制 |
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| 引用本文： | 李宏举,陈慧军.利用小波变换求解载波条纹的相位调制[J].北京大学学报(自然科学版),2007,43(3):317-320. |
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| 作者姓名： | 李宏举 陈慧军 |
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| 作者单位： | 北京大学工学院,北京,100871;通讯作者,E-mail: chjbear@pku.edu.cn |
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| 摘 要： | 根据小波系数模值的极大值与载波频率关系,提出了依据载波频率确定小波变换系数极值在尺度坐标里搜索范围的方法,降低小波变换求解载波条纹相位调制的难度,给出了调制相位求解的算例,分析了载波频率对相位求解的误差影响。
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| 关 键 词： | 载波条纹 小波变换 极大值搜索 相位求解 |
| 收稿时间： | 2006-08-15 |
| 修稿时间： | 2006-08-152006-10-10 |
Phase Solution of Modulated Fringe Carrier Using Wavelet Transform |
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| LI Hongju,CHEN Huijun.Phase Solution of Modulated Fringe Carrier Using Wavelet Transform[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2007,43(3):317-320. |
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| Authors: | LI Hongju CHEN Huijun |
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| Institution: | College of Engineering, Peking University, Beijing, 100871; Corresponding Author, E-mail: chjbear@pku.edu.cn |
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| Abstract: | The relation between the carrier frequency and the maximum of the wavelet coefficient modules is given, from which the searching ranges of the maximum amplitudes in the dimension coordinate are presented. The method reduces the difficulty of phase determination from the wavelet transform coefficient maps. The computational results show the validity of the technique, and present the influence of the carrier frequency on the processing errors of the phase solution. |
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| Keywords: | carrier fringes wavelet transform maximum searching phase solution |
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