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Thierry Leconte b8d64104b0 add option (-s -p etc..) 21 anni fa
LICENSE pre release mods and add 21 anni fa
Makefile add option (-s -p etc..) 21 anni fa
README add option (-s -p etc..) 21 anni fa
TODO add option (-s -p etc..) 21 anni fa
atpdec.1 add option (-s -p etc..) 21 anni fa
cmap.h add temperature compensation + new colormap for better false color generation 21 anni fa
convert.c Initial revision 21 anni fa
dsp.c add option (-s -p etc..) 21 anni fa
filter.c Initial revision 21 anni fa
filter.h Initial revision 21 anni fa
filtercoeff.h Initial revision 21 anni fa
image.c add temperature compensation + new colormap for better false color generation 21 anni fa
main.c add option (-s -p etc..) 21 anni fa
satcal.h add temperature compensation + new colormap for better false color generation 21 anni fa

README


ATPDEC README (Thierry Leconte 2003)

DESCRIPTION

Atpdec is an open source program that decodes images transmitted by POES
NOAA weather satellite series.
These satellites transmit continuously, among other things, medium
resolution images of the earth on 137Mhz.
These transmissions could be easily received with an inexpensive antenna
and dedicated receiver.
Output from such a receiver, is an audio signal that could be recorded
into a soundfile with any soundcard.

Atpdec will convert these sounfiles into .png images.

For each soundfile up to 6 images could be generated :

1. Raw image : contains the 2 transmitted channel images + telemetry
and synchro pulses.
2. Calibrated channel A image
3. Calibrated channel B image
4. Temperature compensed I.R image
5. False color image
6. pixel distribution statistique (usefull for false color cmap debugging).

Input soundfiles must be mono signal sampled at 11025 Hz.
Atpdec use libsnd to read soundfile, so any sound file format supported by libsnd
could be read.(Only tested with .wav file).

COMPILATION

Atpdec is written in plain standart C and must be very portable.
It was only tested on Linux Suse 8.2, but must work on any Unix platform.
Just adapt the Makefile and type make (sorry no configure).

atpdec use libsnd, libpng and libm.
snd.h and png.h header must be present on your system.
If they are not on standard path, edit the include path in the Makefile.

USAGE

see atpdec.1 man page.