Study on Chebyshev FIR Filters in Airborne Gravity Data Processing

DOI

10.2991/cse.2013.42How to use a DOI?

Keywords

airborne gravity data; low-pass; Chebyshev approximation; finite impulse response (FIR)

Abstract

In order to pick up the low-frequency gravity anomaly from airborne gravity data, a finite impulse response (FIR) low-pass digital filter with the Chebyshev approximation theorem was designed, and the filtering effects of three design parameters were studied. Results show that the filter order may amplify the passband section and affect the stopband attenuation; the passband and stopband edge frequency have similar effects on transition band but opposite effects on stopband. Compared with the commercial software results, the standard deviations of the filtered gravity anomalies using the optimal parameters are within 1mGal, and the internal accord accuracy of four survey lines after level adjusting is 0.585mGal.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wei Zhou
AU  - Tijing Cai
AU  - Zeyang Xu
PY  - 2013/07
DA  - 2013/07
TI  - Study on Chebyshev FIR Filters in Airborne Gravity Data Processing
BT  - Proceedings of the 2nd International Conference on Advances in Computer Science and Engineering (CSE 2013)
PB  - Atlantis Press
SP  - 183
EP  - 187
SN  - 1951-6851
UR  - https://doi.org/10.2991/cse.2013.42
DO  - 10.2991/cse.2013.42
ID  - Zhou2013/07
ER  -