RAWPRESS

Compress raw data

Description:

Compress the raw time series data. Currently two compression schemes are available - see parameter " METHOD" . This task is intended to be a test bed of compression algorithms.

Parameters:

IN = NDF (Read)
Input files to be compressed.
METHOD = _CHAR (Read)
The compression scheme to use:

" OLD" - converts 32-bit integers to 16-bit integers by calculating a common mode signal at each time slice and a multiplicative value (BZERO and BSCALE) after removing the first measurement (STACKZERO).

" DELTA" - stores the differences between adjacent bolometer samples as 16-bit integers. Any values for which the differences are too big to be stored in 16 bits are stored explicitly in 32 bit integers (see SUN/11 for full details).

[DELTA]

MSG_FILTER = _CHAR (Read)
Control the verbosity of the application. Values can be NONE (no messages), QUIET (minimal messages), NORMAL, VERBOSE, DEBUG or ALL. [NORMAL]
OUT = NDF (Write)
Output file(s).

Notes:

Related Applications

SMURF: RAWUNPRESS
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