The Design and Experiment of IIR Lowpass Digital Filters for Airborne Gravity Data

详细信息   

• 责任者：Guo Zhihong (China Aero Geophysical Survey and Remote Sensing Center for Land and Resources ; Beijing 100083 ; China) ; Luo Feng
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54(8)
• 关键词：航空重力测量 ; aerogravity surveys ; 数字滤波 ; numerical filters
• 页码：p.2148-2153
• 图表：7 illus., 1 table, 15 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

The authors design IIR （Infinite Impulse Response） lowpass digital filters based on Butterworth and Chebyshev approach, do the experiment research of filtering GT-1A airborne gravity data, and get some meaningful results. By selecting proper parameters such as passband and stopband attenuation, these IIR lowpass digital filters for airborne gravity data can get satisfactory filtering effect almost as good as GT-1A result.