一种新小波阈值算法的变形监测数据去噪方法
P258; 针对传统小波阈值去噪算法中阈值估计不足的问题,在推导出高频信号中噪声影响幅度按 1/2 的规律逐渐减小后,提出一种新小波阈值估计算法,并将其应用于变形监测数据的去噪处理.理论分析和工程实例均表明,本文方法能够有效地克服软阈值法存在的恒定偏差,进一步提高去噪的精度和可靠性....
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| Veröffentlicht in: | 大地测量与地球动力学 2023, Vol.43 (8), p.847-850 |
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| container_title | 大地测量与地球动力学 |
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| creator | 沙磊 |
| description | P258; 针对传统小波阈值去噪算法中阈值估计不足的问题,在推导出高频信号中噪声影响幅度按 1/2 的规律逐渐减小后,提出一种新小波阈值估计算法,并将其应用于变形监测数据的去噪处理.理论分析和工程实例均表明,本文方法能够有效地克服软阈值法存在的恒定偏差,进一步提高去噪的精度和可靠性. |
| doi_str_mv | 10.14075/j.jgg.2023.08.016 |
| format | Article |
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| issn | 1671-5942 |
| language | chi |
| recordid | cdi_wanfang_journals_dkxbydz202308016 |
| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| title | 一种新小波阈值算法的变形监测数据去噪方法 |
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