Opened 18 years ago
Closed 14 years ago
#46 closed enhancement (fixed)
Requirement 6.7-13 FFT spectra
| Reported by: | Chris Phillips | Owned by: | Malte Marquarding |
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| Priority: | normal | Milestone: | ASAP 2.4 |
| Component: | General | Version: | 2.0 |
| Severity: | normal | Keywords: | |
| Cc: | chris.phillips@… |
Description
A method to FFT spectra is needed. The FFT spectrum should be plottable (amplitude at the minimum, real and imaginary optionally if feasible). It is necessary to be able to flag spectrally the FFT spectrum. The user will then need to FFT the data back to a frequency spectrum. Preferaby the same FFT method will do the forward and reverse transform (ie user does not need to specify .fft and .ifft for example).
Change History (10)
comment:1 Changed 18 years ago by
| Milestone: | ASAP2 release → ASAP 2.1 |
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comment:2 Changed 18 years ago by
| Owner: | changed from malte.maquarding to Malte Marquarding |
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comment:3 Changed 18 years ago by
| Owner: | changed from Malte Marquarding to anonymous |
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| Status: | new → assigned |
comment:4 Changed 18 years ago by
| Owner: | changed from anonymous to malte.marquarding@… |
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| Status: | assigned → new |
comment:5 Changed 18 years ago by
| Cc: | chris.phillips@… added; Chris Phillips removed |
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| Owner: | changed from malte.marquarding@… to Malte Marquarding |
| Status: | new → assigned |
This is now partially implemented as scantable.lag_flag. This only allows to flag specific frequencies, but does not provide any plottling capabilities.
comment:6 Changed 18 years ago by
| Milestone: | ASAP 2.1 → ASAP 2.2 |
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The first part is done. Second part deferred
comment:7 Changed 16 years ago by
| Milestone: | ASAP 2.2 → ASAP 2.4 |
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comment:8 Changed 15 years ago by
Changesets [1578-1579] work towards this.An interactive lagflagger, plus better handling of regions to be flagged. Still need some documentation.
comment:9 Changed 15 years ago by
Also, the lag_flag now interpolates over flagged regions in the data. This is only done for the lag_flag not the interactive version.
comment:10 Changed 14 years ago by
| Resolution: | → fixed |
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| Status: | assigned → closed |
This is on hold for now after intensive investigation. FFT does not reveal the ripple frequencies.