摘要
为有效地消除噪声对重力仪测量数据的影响,提高重力异常测量值的精度,在分析平稳小波多尺度分析原理的基础上,将平稳小波应用到重力仪数据处理中,并与传统小波多尺度分析进行了对比。理论分析和仿真实验表明,平稳小波和传统小波都能在一定程度上抑制噪声对高精度重力仪测量数据的影响,但平稳小波的性能优于传统小波。
In order to effectively alleviate the effect of noise in high precise gravitational system, and improve the precision of the gravity abnormity measurement, the theory of stationary wavelet multiresolution is analyzed and applied to process the data measured by gravimeter. The denoising result is compared with that of classic wavelet. Theoretical analysis and experimental results show that both stationary wavelet and classic wavelet are effective in alleviating the effects of noise, while the stationary wavelet＇s performance is greater than that of classic wavelet.
出处
《中国惯性技术学报》
EI
CSCD
2005年第5期63-66,共4页
Journal of Chinese Inertial Technology
基金
高等学校博士学科点专项科研基金(20020699014)
航空基础科学基金资助(04I53067)资助
关键词
重力仪
重力异常
平稳小波
信号处理
gravimeter
gravity abnormity
stationary wavelet
signal processing
