| 小波变换光谱相干方法还原复杂光谱位相的理论研究 |
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| 引用本文： | 黄文捷,宋振明,陈盛华.小波变换光谱相干方法还原复杂光谱位相的理论研究[J].科学技术与工程,2007,7(21):5655-5657. |
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| 作者姓名： | 黄文捷 宋振明 陈盛华 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院超快激光研究室,信息技术科学教育部重点实验室,天津,300072 |
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| 摘 要： | 在对SPIDER还原方法进行研究的基础上,用数值模拟说明小波变换还原fs脉冲光谱位相的过程,通过对复杂位相的分解和还原,分析了Gabor小波变换对各阶光谱位相还原带来的误差,验证了小波变换还原光谱位相的精确性,分析采用小波变换来减少还原算法带来的误差,提出还原光谱位相中小波函数的选择及参数选择对提高精确度的重要性。
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| 关 键 词： | 小波变换 SPIDER 位相还原 光谱相干 |
| 文章编号： | 1671-1819（2007）21-5655-03 |
| 修稿时间： | 2007-06-26 |
Study of Wavelet-transform Analysis of Spectral Interferogram to Reconstruct the Complex Spectrum Phase of Pulse |
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| HUANG Wen-jie,SONG Zhen-ming,CHEN Sheng-hu,ZHANG Zhi-gang.Study of Wavelet-transform Analysis of Spectral Interferogram to Reconstruct the Complex Spectrum Phase of Pulse[J].Science Technology and Engineering,2007,7(21):5655-5657. |
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| Authors: | HUANG Wen-jie SONG Zhen-ming CHEN Sheng-hu ZHANG Zhi-gang |
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| Institution: | 1Ultrafast laser laboratory, School of Precision Instrument and Optoelectronics Engineering, Key Laboratory of Opteeleetrenics Information Technical Science, University of Tianjint , Tianjin 300072, P. R. China;2Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University , Beijing 100871, P. R. China |
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| Abstract: | Based on study on phase reconstruction software,the phase reconstruction process is illuminated by wavelet transform.By replacing the complicated phase with factorial expression,the error for different factorial phase with Gabor wavelet function is calculatd and proved the valid results of the wavelet transform way.After comparing the error,founded choice of wavelet function and parameters is important for reconstruction of complicated phase. |
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| Keywords: | wavelet transform SPIDER phase reconstruction spectrum interference |
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