WSJT-X/lib/ldpc/ex-wrong-model
Steven Franke 5ac886855d Add ldpc sandbox folder.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6437 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2016-01-25 00:04:21 +00:00

125 lines
4.8 KiB
Bash
Executable File

#!/bin/sh
# These tests investigate what happens when the wrong model is used for
# decoding. A (1800,1000) LDPC code with 3 check per bit is used.
# Testing is done by transmitting random messages. Decoding is done using
# a maximum of 100 iterations of probability propagation.
#
# The first set of tests compares decoding of messages sent through an
# AWGN channel using the correct AWGN model with sigma=0.90 to decoding
# using AWGN models with incorrect values for sigma and to decoding
# using AWLN models with varying width parameters for the logistic noise
# distribution.
#
# A second set of tests compares decoding of messages sent through an
# AWLN channel using the correct AWLN model with width=0.50 to decoding
# using AWLN models with incorrect values for width and to decoding
# using AWGN models with varying sigma parameters.
set -e # Stop if an error occurs
set -v # Echo commands as they are read
make-ldpc ex-wrong-model.pchk 1000 1800 1 evenboth 3 no4cycle
make-gen ex-wrong-model.pchk ex-wrong-model.gen dense
rand-src ex-wrong-model.src 1 800x1000
encode ex-wrong-model.pchk ex-wrong-model.gen ex-wrong-model.src \
ex-wrong-model.enc
# FIRST SET OF TESTS, TRANSMITTING THROUGH AWGN CHANNEL WITH SIGMA=0.90
transmit ex-wrong-model.enc ex-wrong-model.rec 1 awgn 0.90
# DECODING WITH CORRECT AWGN NOISE MODEL, SIGMA=0.90
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 0.90 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=0.95
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 0.95 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=0.85
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 0.85 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.40
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.40 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.45
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.45 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.50
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.50 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.55
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.55 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.60
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.60 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.65
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.65 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# SECOND SET OF TESTS, TRANSMITTING THROUGH AWLN CHANNEL WITH WIDTH=0.50
transmit ex-wrong-model.enc ex-wrong-model.rec 1 awln 0.50
# DECODING WITH CORRECT AWLN NOISE MODEL, WIDTH=0.50
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.50 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.55
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.55 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWLN NOISE MODEL, WIDTH=0.45
decode ex-wrong-model.pchk ex-wrong-model.rec - awln 0.45 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=0.80
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 0.80 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=0.85
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 0.85 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=0.90
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 0.90 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=0.95
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 0.95 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=1.00
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 1.00 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src
# DECODING WITH AWGN NOISE MODEL, SIGMA=1.05
decode ex-wrong-model.pchk ex-wrong-model.rec - awgn 1.05 prprp 100 \
| verify ex-wrong-model.pchk - ex-wrong-model.gen ex-wrong-model.src