Abstract
A digital low-pass filter has been constructed, the attenuation of which varies linearly with frequency. The range over which these desirable filter characteristics apply is not limited by the availability of capacitors and inductors of reasonable size as required by analog low-pass filters. The filter has been designed for the highcut pre-filtering of a long-period (e.g., diurnal) signal, which is a necessary process to be performed if aliasing is to be avoided, when the signal is to be digitised using a low sampling rate.
| Original language | English |
|---|---|
| Pages (from-to) | 684-689 |
| Number of pages | 6 |
| Journal | New Zealand Journal of Geology and Geophysics |
| Volume | 13 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1970 |
| Externally published | Yes |
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Cite this
Green, R., & Somerville, P. (1970). An electronic filter for tidal frequencies (25μHz). New Zealand Journal of Geology and Geophysics, 13(3), 684-689. https://doi.org/10.1080/00288306.1970.10431339