March 22, 2007, at 08:10 AM
by mkeith -
Changed lines 13-14 from:
Workaround: Patch with old re-sampling code.\\
to:
Workaround: Patch with old re-sampling code, or remember to account for negative values\\
March 22, 2007, at 08:02 AM
by mkeith -
Changed lines 11-14 from:
Versions tested: 4.1,4.2 & 3.8
Versions affected: >=4.1
Workaround: Patch with old re-sampling code.
to:
Versions tested: 4.1,4.2 & 3.8\\
Versions affected: >=4.1\\
Workaround: Patch with old re-sampling code.\\
Changed lines 22-25 from:
Versions tested: 4.1,4.2 & 3.8
Versions affected: all
Workaround: A patch: [[http://www.jb.man.ac.uk/~mkeith/dm.patch|patch]]. Note that this will mean that the DM is not set to 0 when completely decimating in frequency.
to:
Versions tested: 4.1,4.2 & 3.8\\
Versions affected: all\\
Workaround: A patch: [[http://www.jb.man.ac.uk/~mkeith/dm.patch|patch]]. Note that this will mean that the DM is not set to 0 when completely decimating in frequency.\\
March 22, 2007, at 08:00 AM
by mkeith -
Changed lines 20-21 from:
When resampling a timeseries using decimate, the DM value in the header is set to 0.
to:
When resampling a timeseries using decimate, the DM value in the header is set to 0, even if no frequency decimation occurs.
March 22, 2007, at 07:59 AM
by mkeith - Added two new bugs
Deleted lines 6-20:
!!Dedisperse
!!!Issue - Baseline causes flux degridation
When using dedisperse with small numbers of channels (<12) and a strong source, the baselining causes the pulse power, and region round the pulse to be lowered.
This may happen to a lesser degree with low power pulsars or with many channels, but it does not appear to be significant.
This is probably caused when the pulse power is strong enough that single pulses can be detected in a single channel.
Versions tested: 3.8 only\\
Versions affected: 3.8 (probably affects all versions)\\
Workaround: Use -nobaseline
Submitted by: M Keith
----
!Fixed Issues (as of 4.2)
Added lines 8-44:
!!!Issue - Acceleration values negative
New acceleration time stretching code causes incorrect acceleration value to be searched. This means that any detections in acceleration are negative of the real value.
Versions tested: 4.1,4.2 & 3.8
Versions affected: >=4.1
Workaround: Patch with old re-sampling code.
Submitted by: M Keith
----
!!Decimate
!!!Issue - DM set to 0
When resampling a timeseries using decimate, the DM value in the header is set to 0.
Versions tested: 4.1,4.2 & 3.8
Versions affected: all
Workaround: A patch: [[http://www.jb.man.ac.uk/~mkeith/dm.patch|patch]]. Note that this will mean that the DM is not set to 0 when completely decimating in frequency.
Submitted by: M Keith
----
!!Dedisperse
!!!Issue - Baseline causes flux degridation
When using dedisperse with small numbers of channels (<12) and a strong source, the baselining causes the pulse power, and region round the pulse to be lowered.
This may happen to a lesser degree with low power pulsars or with many channels, but it does not appear to be significant.
This is probably caused when the pulse power is strong enough that single pulses can be detected in a single channel.
Versions tested: 3.8 only\\
Versions affected: 3.8 (probably affects all versions)\\
Workaround: Use -nobaseline
Submitted by: M Keith
----
!Fixed Issues (as of 4.2)
!!Seek
Changed line 51 from:
to:
Versions affected: <=4.1\\
March 22, 2007, at 07:49 AM
by mkeith -
Added lines 5-6:
! Current Issues (as of 4.2)
Added lines 20-21:
!Fixed Issues (as of 4.2)
Added lines 26-27:
Fixed - Various patches to normalization routines.
February 15, 2007, at 10:18 AM
by mkeith -
Changed lines 20-21 from:
to:
After upgrading to 4.1, seek produces consistently lower SNR values than previous versions.
February 15, 2007, at 10:15 AM
by 130.88.9.75 -
Added lines 16-25:
----
!!Seek
!!!Issue - Seek in Sigproc-4.1 generates snrs (reconstructed and spectral) a few percent lower than its older counterpart Sigproc-3.8.
Versions tested: 4.1 and 3.8 only\\
Versions affected: 4.1\\
Workaround:
Submitted by: R Eatough
February 15, 2007, at 09:15 AM
by mkeith -
Changed lines 3-4 from:
If you add any issues please sign your name!
to:
If you add any issues please sign your name! Keep the formatting consistent.
February 15, 2007, at 09:14 AM
by mkeith -
Changed lines 11-12 from:
Versions tested: 3.8 only
Versions affected: 3.8 (probably affects all versions)
to:
Versions tested: 3.8 only\\
Versions affected: 3.8 (probably affects all versions)\\
Changed line 15 from:
to:
February 15, 2007, at 09:12 AM
by mkeith -
Changed line 6 from:
to:
!!!Issue - Baseline causes flux degridation
Changed lines 9-10 from:
to:
This is probably caused when the pulse power is strong enough that single pulses can be detected in a single channel.
February 15, 2007, at 09:11 AM
by mkeith -
Changed line 6 from:
to:
Changed lines 10-11 from:
to:
Versions tested: 3.8 only
Versions affected: 3.8 (probably affects all versions)
Workaround: Use -nobaseline
February 15, 2007, at 09:08 AM
by mkeith -
Changed lines 3-4 from:
Please sign your entries here.
to:
If you add any issues please sign your name!
February 15, 2007, at 09:08 AM
by mkeith -
Changed lines 1-2 from:
to:
February 15, 2007, at 09:07 AM
by mkeith -
Changed lines 7-8 from:
When using dedisperse with small numbers of channels and a strong source, the baselining causes the pulse power, and region round the pulse to be lowered.
to:
When using dedisperse with small numbers of channels (<12) and a strong source, the baselining causes the pulse power, and region round the pulse to be lowered.
This may happen to a lesser degree with low power pulsars or with many channels, but it does not appear to be significant.
Fix: Use -nobaseline
February 15, 2007, at 09:06 AM
by mkeith - dedisperse problem
Added lines 1-10:
!Sigproc Issues
Please sign your entries here.
!!Dedisperse
When using dedisperse with small numbers of channels and a strong source, the baselining causes the pulse power, and region round the pulse to be lowered.
M Keith
----