摘要
基于小波分析中传统的阈值函数,结合其他学者提出的小波阈值函数,提出一种改进的小波阈值函数,并将其应用于变形监测数据的去噪处理。理论分析和算例表明,新的小波阈值去噪函数能够有效去除噪声。
Based on the traditional threshold function in wavelet analysis,combined with the wavelet threshold function proposed by other scholars,this paper further studies and analyzes the practical application.We propose a new method:denoising the deformation monitoring data with a new wavelet threshold de-noising function.Theoretical analysis and examples show that the new wavelet threshold de-noising function can effectively remove noise and has good denoising effect.
作者
甘若
陈天伟
郑旭东
段青达
潘梅
GAN Ruo;CHEN Tianwei;ZHENG Xudong;DUAN Qingda;PAN Mei(College of Geomatics and Geoinformation,Guilin University of Technology,319 Yanshan Street,Guilin 541006,China;Guangxi Key Laboratory of Spatial Information and Geomatics,319 Yanshan Street,Guilin 541006,China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2020年第1期17-22,共6页
Journal of Geodesy and Geodynamics
基金
广西自然科学基金(2017GXNSFAA198308)
广西空间信息与测绘重点实验室主任基金(15-140-07-09)~~
关键词
小波阈值函数
小波去噪
变形监测
质量评估
wavelet threshold function
wavelet de-noising
deformation monitoring
quality assessment