Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/~aoftm/offline.html
Дата изменения: Mon Jul 26 06:35:58 1999
Дата индексирования: Mon Oct 1 21:24:22 2012
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Offline Data Decoding Tools

Offline AOFTM Data Tools


This page desribes the publicly available software which unpacking AOFTM disk and magnetic tape data for piping to user programs.

The UNIX script aoftm_unpack reads AOFTM data from tape or UNIX file in 2 bit or 8 bit form, converts to single bytes, and outputs the data stream to stdout. For each time sample, 256 (for 8 bit data) or 1024 (for 2 bit data) channel amplitudes are output, in order of increasing frequency.

To run this script, you will need to download the following files:
  • Makefile
    Running this Makefile will create all executables needed to run the aoftm_unpack script. Replace LDFLAGS with the appropriate directories on your system.
  • read_hdr.c
    This program is the first called by the aoftm_unpack script. It reads the AOFTM header file (in FITS format) and outputs an ascii header file.
  • ao_unpack.c
    This is the code which reads the data from tape or UNIX file, does the conversion to single bytes, and outputs to stdio. It requires the files 'header' and 'board_config', output by read_hdr.
  • indexx.c , nrutil.c , and nrutil.h
    These numerical recipes routines are needed to compile ao_unpack.c. We have made some slight modifications to the numerical recipes code, so please download our versions even if you have the library on your machine.
    • The script tape.inspect will scan through a tape, reading all the header files and reporting the contents. You must have the file and the compiled read_hdr program to run this script.


    If you have any comments about this page or questions about the unpacking codes, please email Maura McLaughlin

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