Opened 19 years ago
Closed 15 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 by , 19 years ago
Milestone: | ASAP2 release → ASAP 2.1 |
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comment:2 by , 19 years ago
Owner: | changed from | to
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comment:3 by , 19 years ago
Owner: | changed from | to
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Status: | new → assigned |
comment:4 by , 19 years ago
Owner: | changed from | to
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Status: | assigned → new |
comment:5 by , 19 years ago
Cc: | added; removed |
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Owner: | changed from | to
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 by , 19 years ago
Milestone: | ASAP 2.1 → ASAP 2.2 |
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The first part is done. Second part deferred
comment:7 by , 17 years ago
Milestone: | ASAP 2.2 → ASAP 2.4 |
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comment:8 by , 16 years ago
Changesets [1578-1579] work towards this.An interactive lagflagger, plus better handling of regions to be flagged. Still need some documentation.
comment:9 by , 16 years ago
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 by , 15 years ago
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.