mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-12-23 16:53:21 +02:00
b3c0b4bf62
We now have a much wider dynamic range of the signal (with better SNR). The outliers are mainly WLAN interferences. - usrp/evscan: changed threshold from -50 dB to -70 dB - usrp/evscan: increase outlier tolerance from 2 dB to 10 dB - usrp/plscan: changed display range from [-35:-25] to [-40:-5]
38 lines
618 B
Bash
Executable File
38 lines
618 B
Bash
Executable File
#!/bin/sh
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usage()
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{
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echo "usage: $0 [-o pngfile] file ..." 1>&2
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exit 1
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}
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if [ "X$1" = X-o ]; then
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out=$2
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shift 2
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fi
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[ "$1" ] || usage
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[ "${1#-}" = "$1" ] || usage
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gnuplot -persist <<EOF
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`[ "$out" ] && ( echo set term png\;; echo set output \'$out\'; )`
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set xlabel "MHz"
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set ylabel "dB"
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set xrange [2402:2483]
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set yrange [-40:-5]
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set title "Received signal strength"
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set data style errorlines
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plot \
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`for n in $@; do
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if [ "$n" = "${n#*=}" ]; then
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file=$n
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title=${n%.*}
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else
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file=${n#*=}
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title=${n%%=*}
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fi
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echo -n $comma \'$file\' title \'$title\'
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comma=,
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done`
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EOF
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