Release Notes ============= Version 0.5.4 -------------- * Switched over to transparent compression in the lsl.common.metabundle functions * Added support for '/' seperated YYYY/MM/DD in lsl.common.sdf.parseTimeString() * Removed the 'return' values from the _gofast module import call * Various cleanups in the C extentions to remove compile time warnings * Tweaked the splitDRX.py script to be more robust * Added support for libnova version 0.15.0 * Improved support for STEPPED observations in lsl.common.sdf * Made the TBW read-out duration calculation consistent with the current version of MCS * Changed the allowed TBN tuning from 10 to 88 MHz to 5 to 93 MHz * Tweaked lsl.common.beamformer.phaseAndSum() to automatically exclude bad stands * Removed a testing block from lsl.common.beamformer.intDelayAndSum() which only sums the first 20 antennas Version 0.5.3 -------------- * Changed the DROS spectrometer reader to match the new format * Fixed the documentation for the various correlator.fx spectra functions * Updated the sphinx documentation to address Ticket #25 * Added the session splitting script to IOC to address Ticket #24 * Changed lsl.common.mcs.mjdmpm2datetime() to return naive datetime instances (Ticket #26) * Fixed a bug in lsl.common.sdf.Project that causes some observation non-overlaps to be reported as overlaps * Fixed a bug in the setup.py script that caused it to crash on systems without pkg-config installed * Modified splitDRX.py to cope with DRX data that begins with frames that list a decimation of zero * Added support for parsing the OBS_DRX_GAIN and OBS_TBN_GAIN keywords in the SDF parser * Cleaned up drxSpectra.py to better deal with files that have a tuning missing at the beginning or where the sample rate changes at the beginning of the file * Added a module to lsl.misc to generate autostereograms from 2-D NumPy arrays * Fixed a bug in lsl.misc.geodesy related to an exception that is thrown when the URL cannot be reached * Added support for parsing LST times at LWA-1 in lsl.common.sdf.parseTimeString() Version 0.5.2 -------------- * Fixed a bug in gatherDebugging.py that caused the script to crash on missing modules * Fixed a bug in FEnginep[RC][23] that caused segmentation faults in Python 2.7 * Made the module path finder a little more robust * Updated the LWA1 SSMIF to the May 16, 2012 version to include the latest antenna status codes * Added a beamformer to lsl.common.dp.SoftwareDP * Changed lsl.common.dp.SoftwareDP.apply() to lsl.commondp.SoftwareDP.applyFilter() * Fixed multi-threading in the lsl.common.dp.SoftwareDP class * Added a clock offset parameter to the cable model (lsl.common.stations.Cable) * Cleaned up the correlateTBW.py scripts * Fixed a bug in the correlator integer sample delays * Fixed bugs in the lsl.misc.beamformer module related to delays * Switch lsl.misc.geodesy over to urllib2 to add support for timeouts on EOP queries * Fixed the URL used by lsl.misc.geodesy.__loadHistoric1992() * Added support for FreeBSD * Added datetime <-> MJD/MPM conversion functions to lsl.common.mcs * Converted lsl.common.progress.ProgressBar to a rotating progress bar Version 0.5.1 -------------- * Added jinja2 to the list of install dependencies * Fixed the segfault associated with the DR spectrometer reader * Cleaned up how splitDRX.py offsets in a file * Removed splitTBW.py since it is no longer needed * Fixed a few bugs in the SDF parser dealing the logging keywords * Modified lsl.common.metabundle.getSessionDefinition to use the SDF in the tarball rather than generate it from the session and observation specification files * Made drxSpectra.py robust against DRX frames with decimation of zero * Made the SDF parser more robust against single word names Version 0.5.0 -------------- * Worked on adding better polarization support to correlator.fx and correlator.uvUtils * Updated the correlateTBN script to make full polarization support possible * Added a crude deconvolution routine that should work with the AIPY ImgW images * Worked on adding in support for binary packed SSMIF files in lsl.common.stations * Worked on adding in support for binary packed SDM files via a new lsl.common.sdm module * Worked on adding in support for the various MCS meta-data tarball file formats * Moved the SDF module out of SessionSchedules and into lsl.common * Added functions to generate the TBN and DRX filter magnitude response * Added versions of the spectra plotters, the correlations, and the stand plotters that use MCS meta-data bundles * Added a basic SSMIF file for the north arm site (LWA-2) * Added a preliminary module for incoherent dedispersion lsl.misc.dedispersion * Added support for spectral kurtosis via lsl.statistics.kurtosis * Updated the dependency list * Cleaned up the TBN ring buffer using deques and OrderedDicts * Added support for reading the TBN tuning word/frequency and gain from a TBN frame * Added support for reading the DRX tuning word/frequency from a DRX frame * Added support for stepped SDF files that specify the delays and gains to use * Added support for ARX board/channel responses via a new common.stations.ARX class * Removed the misc.beamformer.fftDelayAndSum functions in favor of phase-and-sum beamforming * Fixed a problem on some platforms with Numpy/LSL version determination in gatherDebugging.py * Cleared the post-interpreter multiprocessing/logging errors during 'test' * Added support for the DR spectrometer output data format * Added support for computing Stokes parameters from timeseries data * Removed deprecated and unused functions from lsl.correlator.fx * Added support for computing Stokes parameters in the FX correlator and fixed the FITS IDI writer to save the data * Removed S60 reader/simulator * Reworked the SDFITS writer to make it more like the FITS IDI writer Older Versions -------------- Version 0.4.5 ++++++++++++++ * Tweaked how the averaging in drxSpectra and tbnSpectra is performed * Upgraded the lsl.reader.drsu module to work with larger file count LWAFS * Added a ls-style script, lsDRSU.py, to list the contents of a DRSU * Added a glob-style function to the DRSU module * Added an array-geometry correction to the correlator to phase up on zenith * Updated the dependency list * Added ARX channel mapping information to lsl.common.stations.Antenna instances * Added a new versioning system to make it easier to access the LSL version in python * Fixed a mapping problem in plotStands.py that mapped by digitizer, not stand * Added a gatherDebugging.py script alongside setup.py to help with debugging and installation problems * Moved gatherDebugging.py to the script directory to have it installed with LSL * Added `documentation support` for accessing the central frequency of a DRX frame * Fixed a RPD_DD mapping problem in lsl.common.stations.parseSSMIF() * Fixed a DP1_SLOT parsing problem in lsl.common.stations.parseSSMIF() * Updated LWA-1 SSMIF to 12/26/2011 to include calibration information * Added the June 30, 2012 leap second into the TAI-UTC file * Fixed a problem in cpDRSU.py with the verbose output * Cleaned up the `sfdisk` calls with the DRSU direct-access module * Added a BeamAlm class to lsl.sim.vis to help with polarization difference between LWA1 and what is implemented in AIPY Version 0.4.4.1 ++++++++++++++++ * Fixed the missing cable attenuation parameters in the SSMIF Version 0.4.4 ++++++++++++++ * Added an id number attribute to lsl.common.stations.FEE objects * Updated LWA-1 SSMIF to 2011-08-10 version * Added `keep` option to tbnSpectra.py to only display a certain collection of stands * Possibly cleared up a install problem on some systems that prevents testing * Fixed various memory leaks in the readers and the direct DRSU access module * Added `documentation support` for accessing the central frequency of a TBN frame * Added support for variable noise level in the various lsl.sim.dp functions * Worked on improving ATLAS library detection on Redhat-based distributions * Improved detection of potential build problems with the DRSU direct-access extension * Updated the coordinates of stand #148 to be consistent with the revised LWA-1 survey * Fixed the digitizer to board mapping to account for DP2 boards * Fixed a bug simulating visibilities that could include sources below the horizon * Fixed the `-i` option in gsmnpz2map.py Version 0.4.3 ++++++++++++++ * Cleaned up the various __init__.py scripts * Fixed a few typos in lsl.correlator.uvUtils * Fixed a typo in the progress bar caused some decrements to increment * Fixed a few typos in lsl.correlator.uvUtils.computeUVTrack * Fixed a typo in the _spec.PPSDC2() function that caused it to die * Fixed several heinous problems in sim.dp.pointSource() * Fixed a bug with indexing in the 4-bit TBW reader * Fixed a few sign errors in correlator _core and uvUtils modules * Fixed a bug in the correlateTBW script related to antenna indexing * Fixed a bug in the FITS IDI writer that caused EOP problems to be fatal Version 0.4.2 ++++++++++++++ * Fixed tbwSpectra.py to skip over non-TBW frames at the beginning of a TBW file * Fixed the common.stations.geo2ecef() conversion function (Ticket #16) * Fixed the correlator.fx.FXMaster() function (Ticket #18) * Fixed a few type conversion problems in correlator._core (core.c) introduced with the new data types * Fixed a frequency units conversion in tbnSpectra.py * Improved polarization support in the FITS IDI writer * Fixed a sign error in the fractional delay correction of the correlator F engine * Improved the speed of the X Engine * Fixed a azimuth definition problem in astro_array.c * Updated the included SSMIF to the 5/18/2011 version * Updated the correlateTBN script to make computing XX and YY products easier * Added support for different cable attenuation models supported in MCS0031, v5 * Added support for the old 20-stand prototype system through lsl.common.stations.prototypeSystem * Updated the correlateTBW script to make computing XX and YY products easier * Updated SSMIF with new stretch and cable gain coefficients * Added support for time-domain blanking via the 'ClipLevel' keyword to various _spec and _core routines Version 0.4.1 ++++++++++++++ * Fixed a problem with the C readers that manifests itself on 32-bit platforms * Modified sphinx to be more independent about version numbers and release notes * Added additional PyDict checks to the _gofast module * Modified lsl.sim.drx to zero the frame and seconds counts to make the DRX frames ICD compliant * Fixed a small bug in lsl.sim.tbw/tbn/drx that caused the seconds counts to be wrong Version 0.4.0 ++++++++++++++ * Added new robust statistical methods * Added Global Sky Model models to skymap * Added new smoothing and fitting functions to misc.mathutil * Added a progress bar for use with long-running applications * Added in new LWA-1 dipole NEC models * Re-worked the plotAntenna.py script to use the pre-computed dipole response fits * Added support for EXCITATION keywords in misc.nec_util * Added new gofast readers for TBW, TBN, and DRX * Added better polyphase filter support * Fixed initialization problems the various lsl.reader Frame objects * Fixed the TBN ring buffer * Added support for simulating point sources in TBW and TBN data * Moved the tests directory out of lsl proper * Added new offset/average options to drxSpectra and tbnSpectra * Added new DRSU direct access module for Linux system (experimental) * Added documentation for the various C extensions * Updated the dependencies list to capture everything needed for the extensions Version 0.3.4.2 ++++++++++++++++ * Fixed a couple of typos. in the correlator scripts * Added more colors to tbwSpectra.py so that all 20 inputs can be plotted * Fixed problems with DRX frame attributes * Fixed filter code problems in the DRX writer * Fixed typo in URL for libnova * Added a brief tutorial for DRX data * Fixed a problem determining if a TBW chunk has enough samples to FFT Version 0.3.4.1 ++++++++++++++++ * Fixed various documentation problems Version 0.3.4 ++++++++++++++ * Added in the new cable attenuation model * Re-wrote the TBW reader so that is it ~40% faster * Removed unnecessary "import" statements in the TBW, TBN, and DRX readers * Fixed slow frame creation by sim.dp on 64-bit systems * Added in the new C-based correlator * Major re-organization of correlator.fx with regards to windowing functions * Switched from 'processing' to 'multiprocessing' * Added the possm.py script for each FITS IDI examination * Fixed tbwSpectra.py and tbnSpectra.py to accommodated the windowing change * Added drxSpectra.py * Fixed various problems with the DP data simulator * Added in option to cable losses in tbwSpectra.py * Fixed a problem in the sim.vis.Antenna class function get_beam_shape * Added in a correlator script for TBW * Added new beam models for use with AIPY based on SLC0015 Version 0.3.3 ++++++++++++++ * Fixed stand indexing error in uvUtils.cableAttenuation * Fixed Mac OS X tbnSpectra.py plotting problem (Ticket #3) * Spectra generated by tbwSpectra.py and tbnSpectra.py now agree with IDA v0.1 * Fixed problems with the frame comparison attributes * Re-wrote the TBN reader so that it is ~20% faster * Fixed syntax errors in misc.difxconfig * Fixed MemoryError problem for some systems with tests.test_vdiff (Ticket #7) * Fixed a problem that caused some systems to assume that LSL was zip safe * Added new stand mappings that correct the 3/4 pair swaps Version 0.3.2 ++++++++++++++ * Added new "tutorial" style documentation for various parts of LSL * Added scripts tbwSplit.py and tbnSplit.py to split large TBW and TBN files down to more manageable sizes Version 0.3.1 ++++++++++++++ * Fixed various typos. in correlator.fx, misc.beamformer, and reader.buffer * Added "close" function to writer.fitsidi Version 0.3.0 ++++++++++++++ * New setuptools-based build system * New, improved documentation * Added post-acquisition beam forming module * Added in modules for writing simulated data to the S60, TBW, TBN, and DRX raw data formats * Added a module for simulated basic test signals in TBW, TBN, and DRX data * Moved the lwa_user script `astrostatus.py' into the scripts directory * Fixed the FITS IDI writer * Fixed a couple of bugs dealing with incorrect chunking of data in scripts/tbwSpectra.py and scripts/tbnSpectra.py Version 0.2.0 ++++++++++++++ * Added in other modules from the lwa_user library developed by NRL Version 0.1.0 ++++++++++++++ * Initial version