42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
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#!/bin/bash
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# jt65 end-to-end simulator. Run enough cases to get a given
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# number of successful decodes or a given number of errors
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# For better performance, copy this script and jt65, jt65sim
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# executables to a ramdisk and run from there.
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mode=C
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spread=4.0
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for i in `seq 0 21`;
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do
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nruns=0
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ndecodes=0
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ngood=0
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nbad=0
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snr=$((-25+$i))
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#while [ $[ $nruns - $ngood ] -lt 200 ]
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#while [ $ngood -lt 200 ]
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while [ $nruns -lt 1000 ]
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do
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rm 000000_0001.wav
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./jt65sim -m $mode -n 1 -d $spread -s \\$snr > /dev/null
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rm decoded.txt
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./jt65 -m $mode -a 10 -f 1500 -n 1000 -s 000000_0001.wav > decoded.txt
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if [ -e decoded.txt ]; then
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nd=$( wc -l < decoded.txt )
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ng=$( grep "K1ABC" decoded.txt | wc -l )
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nb=$[$nd-$ng]
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ndecodes=$[$ndecodes + $nd]
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ngood=$[$ngood + $ng]
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nbad=$[$nbad + $nb]
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fi
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nruns=$[$nruns + 1]
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nmissed=$[$nruns-$ngood]
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pe=$( echo "scale=5; $nmissed/$nruns" | bc -l )
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ps=$( echo "scale=5; $ngood/$nruns" | bc -l )
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echo -en snr: $snr nruns: $nruns ndecodes: $ndecodes ngood: $ngood nbad: $nbad nmissed: $nmissed wer: $pe success: $ps"\r"
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done
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echo snr: $snr nruns: $nruns ndecodes: $ndecodes ngood: $ngood nbad: $nbad nmissed: $nmissed wer: $pe success: $ps
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done
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