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| ??????????????????????书Ч???? | |
| 引用本文： | 田颜锋,李姗姗,刘晓刚,付国峰.??????????????????????书Ч????[J].大地测量与地球动力学,2009,29(6):130-132. |
| 作者姓名： | 田颜锋 李姗姗 刘晓刚 付国峰 |
| 作者单位： | 1. 解放军信息工程大学测绘学院,郑州,450052;73603部队,南京,210049 2. 解放军信息工程大学测绘学院,郑州,450052 3. 73603部队,南京,210049 |
| 基金项目： | 国家自然科学基金，军事测绘任务"中国及周边重力场精化"项目基金 |
| 摘 要： | ???????????????????o???????????????????????FIR??????????????????????????FIR????????????о??????????λ?????????????????????????????????????????????о?????????????????????任?е????Ч??? |
| 关 键 词： | ??????任 ??? FIR??????? ???????????? ???Ч? |
LOW-PASS FILTER AND ITS EFFECT IN DATA PROCESSING OF AERIAL GRAVITY MEASUREMENTS |
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| Tian Yanfeng,Li Shanshan,Liu Xiaogang,Fu Guofeng.LOW-PASS FILTER AND ITS EFFECT IN DATA PROCESSING OF AERIAL GRAVITY MEASUREMENTS[J].Journal of Geodesy and Geodynamics,2009,29(6):130-132. | |
| Authors: | Tian Yanfeng Li Shanshan Liu Xiaogang Fu Guofeng |
| Institution: | Tian Yanfeng1,2),Li Shanshan1),Liu Xiaogang1) , Fu Guofeng2)(1)Institute of Surving , Mapping,Information Engineering University,Zhengzhou 4500522)73603 Troops,Nanjing 210049) |
| Abstract: | Considering the characteristics of the processing of aerial gravimetry data,a FIR digital filter based on the window function is designed.The results show that FIR digital filter has accurate linearity phase and its filtering process is steady and the method is simple and easy to be realized on the computer.The barrier phenomena in the Fourier transform can be partially reduced by the convolution integral in the process of filtering. |
| Keywords: | Fourier transform convolution integral FIR digital filter aerial gravity data barrier phenomena |
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