Changes between Version 3 and Version 4 of Changes/uvsplit

Timestamp:

11/09/07 11:13:03 (17 years ago)

Author:

StacyMader

Comment:

--

Changes/uvsplit

@@ -7 +7 @@
 Add a parameter to uvplit to split up wide bands into a number of sub-bands. This could either be a nsub type keyword specifying the number of bands to split into, or a maxbandwidth keyword to limit the maximum bandwidth of the output files. Some thought needs to go into the naming scheme of the output files, since sub-bands and zoom bands could have identical center frequencies.
 
+The current naming scheme is to use the source name and center frequency (rounded to the nearest integer). For example, hh137.4800 (HH object 137 and 4800 MHz center frequency). For MOPS, each board has an overall bandwidth of 8.3 GHz, divided into four overlapping sub-bands each of 2.2 GHz. MOPS (and CABB?) has two modes:
+
+'''Wideband''' - providing 1024 channels over each 2.2 GHz sub-band, on two polarizations.
+
+'''Zoom-bands''' - Up two four 138 MHz wide zoom bands within each 2.2 GHz sub-band, on two pols. It can provide 4096 channels on each zoom-band, with up to 16 zoom bands located throughout the full 8.3 GHz frequency range.
+
+If we split using the nsub keyword, a possible naming scheme for uvsplit output files would be to simply put a w (for wideband) or z (for zoom) in the name. For example:
+
+* For splitting wideband data into n chunks, the output filenames become source.cfreq.w.BW.n (cfreq is central freq of sub-band n with width BW [M|G]Hz)
+
+* For zoom bands, the output filenames become source.cfreq.z.BW.n
+
+
+
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